CN112688280B - Power supply protection method and device for high-voltage generator and X-ray imaging system - Google Patents
Power supply protection method and device for high-voltage generator and X-ray imaging system Download PDFInfo
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Abstract
The application discloses a power supply protection method and device of a high-voltage generator and an X-ray imaging system, and particularly relates to the technical field of high-voltage generators. The method comprises the following steps: acquiring an energy acquisition instruction; judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length or not based on the energy acquisition instruction; and if the energy acquisition time length is longer than the preset energy acquisition time length, limiting the high-voltage generator to acquire energy. The energy acquisition instruction is acquired, whether the energy acquisition time length of the high-voltage generator is longer than the preset energy acquisition time length is judged through the energy acquisition instruction, and then the energy acquisition of the high-voltage generator is limited according to the time length judgment result, so that the power supply for providing energy for the high-voltage generator is prevented from being in an energy output state all the time, the use time of the power supply is increased, and the service life of the power supply is further prolonged.
Description
Technical Field
The application relates to the technical field of high-voltage generators, in particular to a power supply protection method and device for a high-voltage generator and an X-ray imaging system.
Background
In the use process of the existing high-voltage generator, the high-voltage generator is in a working state for a long time, so that a power supply connected with the high-voltage generator is forced to supply energy to the high-voltage generator for a long time, and the service life of the power supply is further influenced. For example: in an X-ray imaging system, a lithium battery system needs to output energy with a large current to a high-voltage generator for a long time, and the service life of the lithium battery system is not long due to the energy output state of the large current, so that the lithium battery in the X-ray imaging system is often required to be replaced, and the use cost of the X-ray imaging system is further increased.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method and an apparatus for protecting a power supply of a high voltage generator, and an X-ray imaging system, so as to solve the problem that the service life of the power supply is affected due to the long time of power supply to the high voltage generator.
According to a first aspect, an embodiment of the present application provides a power protection method for a high voltage generator, including: acquiring an energy acquisition instruction; judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length or not based on the energy acquisition instruction; and if the energy acquisition time length is longer than the preset energy acquisition time length, limiting the high-voltage generator to acquire energy.
According to the power supply protection method for the high-voltage generator, the energy acquisition instruction is acquired, whether the energy acquisition time length of the high-voltage generator is longer than the preset energy acquisition time length is judged through the energy acquisition instruction, and then the energy acquisition of the high-voltage generator is limited according to the time length judgment result, so that the power supply for providing energy for the high-voltage generator is prevented from being in an energy output state all the time, the use time of the power supply is increased, and the service life of the power supply is further prolonged.
With reference to the first aspect, in a first implementation manner of the first aspect, a process of acquiring the preset energy acquisition duration includes: receiving energy transmitted by an energy storage unit and acquiring energy acquisition time length of the high-voltage generator; and searching a corresponding preset energy acquisition time length in the matched pair energy protection table based on the energy acquisition time length of the high-voltage generator.
With reference to the first aspect or the first implementation manner of the first aspect, in a second implementation manner of the first aspect, if the energy acquisition time length is equal to a preset energy acquisition time length, searching a preset energy acquisition time length corresponding to the corresponding energy protection table, and performing energy reminding; if the energy acquisition time length is smaller than the preset energy acquisition time length, continuing to record the duration time of the energy acquisition time length.
According to the power protection method for the high-voltage generator, the energy acquisition time length is preset, and the time length and the energy acquisition time length are judged, so that the service life of the power supply is prolonged.
With reference to the first implementation manner of the first aspect, in a third implementation manner of the first aspect, the acquiring an energy acquisition duration of the high voltage generator includes: recording is started from the initial moment when the energy storage unit is received to transmit energy.
According to the power supply protection method for the high-voltage generator, the time length is recorded from the initial time when the energy storage unit is received to transmit the energy, so that the high-voltage generator can be accurately limited in energy supply, and the service life of the power supply is prevented from being shortened due to the fact that the energy of the high-voltage generator cannot be accurately limited.
With reference to the first implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the energy protection table is used to characterize a correspondence between a maximum limit current value and time.
According to the power protection method for the high-voltage generator, provided by the embodiment of the application, the critical value of the energy protection value can be intuitively determined through the corresponding relation between the maximum limit current value and time, the service life of the power supply is ensured, and the service life of the power supply is improved.
With reference to the first aspect, in a fifth implementation manner of the first aspect, the limiting the energy obtaining by the high voltage generator includes: and sending an energy stopping acquisition instruction of the high-voltage generator, and closing a power supply, or stopping the energy storage unit from supplying energy to the high-voltage generator.
According to the power protection method for the high-voltage generator, disclosed by the embodiment of the application, the power is turned off by sending the energy stopping acquisition instruction of the high-voltage generator, or the energy storage unit is stopped to supply energy to the high-voltage generator, so that the problem of increased use cost caused by long-time work of the power is prevented.
According to a second aspect, an embodiment of the present application provides a power protection device for a high voltage generator, including: the acquisition module is used for acquiring an energy acquisition instruction; the judging module is used for judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length or not based on the energy acquisition instruction; and the limiting module is used for limiting the high-voltage generator to acquire energy if the energy acquisition time period is longer than the preset energy acquisition time period.
According to the power supply protection device for the high-voltage generator, the energy acquisition instruction is acquired through the acquisition module, the judgment module is used for judging whether the acquired energy acquisition time is longer than the preset energy acquisition time or not, and the limiting module is used for limiting the energy acquisition of the high-voltage generator, so that the power supply for providing energy for the high-voltage generator is prevented from being in an energy output state all the time, the use of the power supply is facilitated to be increased, and the service life of the power supply is further prolonged.
According to a third aspect, an embodiment of the present application provides an X-ray imaging system comprising:
the energy supply unit is connected with the energy storage unit and used for supplying energy to the energy storage unit; the energy storage unit is connected with the high-voltage generator and used for providing the stored energy to the high-voltage generator; the high-voltage generator is respectively connected with the energy storage unit and the control unit and is used for receiving the energy provided by the energy storage unit and the energy acquisition instruction sent by the control unit, or the energy stopping acquisition instruction, and the control unit is respectively connected with the high-voltage generator and the energy supply unit and is used for executing the power supply protection method of the high-voltage generator in the first aspect or any one of the implementation modes of the first aspect.
According to the X-ray imaging system provided by the embodiment of the application, the energy supply unit is connected with the energy storage unit to supply energy to the high-voltage generator so as to generate X-rays for X-ray imaging, and the control unit is used for monitoring and limiting the energy of the high-voltage generator so as to prolong the service life of the power supply in the X-ray imaging system, avoid frequent replacement of the lithium battery and reduce the use cost of the X-ray imaging system.
According to a fourth aspect, an embodiment of the present application provides an electronic device, including: the power protection device comprises a memory and a processor, wherein the memory and the processor are in communication connection, the memory stores computer instructions, and the processor executes the computer instructions, so as to execute the power protection method of the high-voltage generator in the first aspect or any implementation manner of the first aspect.
According to a fifth aspect, an embodiment of the present application provides a computer-readable storage medium storing computer instructions for causing the computer to perform the power protection method of the high voltage generator according to the first aspect or any implementation manner of the first aspect.
Drawings
The features and advantages of the present application will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the application in any way, in which:
fig. 1 is a block diagram of a power protection device of a high voltage generator provided in an embodiment of the present application;
FIG. 2 is a flow chart of a method for protecting power supply of a high voltage generator according to an embodiment of the present application;
FIG. 3 is a flow chart of an alternative method for protecting the power supply of a high voltage generator according to an embodiment of the present application;
FIG. 4 is a graph of energy at 110KV for a high voltage generator provided by an embodiment of the present application;
fig. 5 is a block diagram of a power protection device of a high voltage generator according to an embodiment of the present application;
FIG. 6 is a block diagram of an X-ray imaging system provided by an embodiment of the present application;
fig. 7 is a block diagram of an electronic device according to an embodiment of the present application.
Reference numerals
A power supply-1; an energy storage unit-2; a high-voltage generator-3; a control unit-4; an energy supply unit-5; obtaining a module-10; a judging module-11; a limiting module-12; a processor-13; and a memory 14.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
Referring to fig. 1, in an embodiment of the present application, there is provided a block diagram of a power protection device for a high voltage generator, the block diagram including: the power supply 1, the energy storage unit 2, the high voltage generator 3 and the control unit 4, wherein the power supply 1 can be connected with the energy storage unit 2 through a power supply line, the energy storage unit 2 is connected with the high voltage generator 3, the power supply 1 provides electric energy for the energy storage unit 2, the energy storage unit 2 receives the electric energy provided by the power supply 1, when the high voltage generator 3 works, electric energy needs to be obtained for the energy storage unit 2 to generate high voltage, the high voltage generator 3 can consume the electric energy stored by the energy storage unit 2 in a period of time for generating the high voltage, and the oversized energy storage unit 2 cannot be used for supplying energy for the high voltage generator 3 due to the consideration of cost and the volume factor of the energy storage unit 2. Thus, in the phase of the power supply 1 powering the high voltage generator 3, the charging current of the power supply 1 increases, and the energy thereof increases, so that the power consumption of the power supply 1 itself increases, wherein the energy consumption also increases with the accumulation of time, which also tends to result in an insufficient service life of the power supply 1. In order to prolong the service life of the power supply 1, a control unit 4 is also connected between the power supply 1 and the high-voltage generator 3, and the control unit 4 is used for monitoring whether the energy received by the high-voltage generator 3 exceeds the standard or not so as to ensure the service life of the power supply.
In addition, it should be noted that, in the embodiment of the present application, the power source may be a device that converts chemical energy into electrical energy, such as: a lithium battery; the energy storage unit can be a high-capacity energy storage capacitor.
The embodiment of the application provides a power protection method of a high-voltage generator, as shown in fig. 2, comprising the following steps:
s10, acquiring an energy acquisition instruction.
In this embodiment, the energy obtaining instruction is set by a user, and after the user sends a start instruction of the high voltage generator through a keyboard or a preset program, the signal receiving end of the control unit receives the start instruction sent by the user, and controls the high voltage generator to start obtaining energy from the energy storage unit or the power supply. The capability obtaining instruction may be a work starting instruction of the high voltage generator received by the control unit, or may be a work starting instruction for starting the high voltage generator within a preset time.
S11, judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length or not based on the energy acquisition instruction.
In this embodiment, the control unit records the energy acquisition time length of the high voltage generator from the initial time of energy acquisition of the high voltage generator, and compares the time length with the preset energy acquisition time length preset in the control unit to determine, as the electric energy formula w=pt= UIt shows that the current is in a proportional relationship with time, the current increases with the increase time of the current, so that it is determined whether the energy acquisition time length of the high voltage generator is greater than the preset time length, and it is determined whether the power supply is in a high-current working state under the corresponding time length, thereby ensuring the service life of the power supply. The preset energy obtaining duration can be a threshold value for transmitting electric energy in preset time, when the obtained energy obtaining duration of the high-voltage generator is longer than the preset energy obtaining duration, corresponding operation (such as closing or prohibiting the high-voltage generator to work) is needed to be made to inhibit the energy obtaining, and the service life of the power supply is indirectly prolonged. The preset energy may be a table of a relation between the reaction current, time and energy obtained through an actual test, or an energy protection table generated according to a relation between the reaction current, time and energy, or may be a plurality of preset numerical points, where in an actual operation, the numerical points may be set as a threshold value, so as to limit the high voltage generator to obtain the overrun energy.
And S12, if the energy acquisition time period is longer than the preset energy acquisition time period, limiting the high-voltage generator to acquire energy.
In this embodiment, when the energy acquisition time period is longer than the preset energy acquisition time period, the power supply is in a working state of high current, and energy is provided to the high-voltage generator, so in order to reduce the working state of the power supply in the high current for a long time, when the energy acquisition time period of the high-voltage generator exceeds the preset energy acquisition time period, the control unit controls the high-voltage generator to stop receiving the energy sent by the power supply or the energy storage unit through the control end, and the problem that the service life of the power supply is shortened due to the overlarge energy is solved.
According to the power supply protection method for the high-voltage generator, the energy acquisition instruction is acquired, whether the energy acquisition time length of the high-voltage generator is longer than the preset energy acquisition time length is judged through the energy acquisition instruction, and then the energy acquisition of the high-voltage generator is limited according to the time length judgment result, so that the power supply for providing energy for the high-voltage generator is prevented from being in an energy output state all the time, the service life of the power supply is prolonged, and the service time length of the power supply is further prolonged.
Optionally, the high voltage generator energy capturing period in step S11 is a period of time required to record energy capturing from an initial time when the energy storage unit is receiving the energy transmitted by the energy storage unit.
Optionally, limiting the energy harvesting of the high voltage generator in step S12 may include sending an energy stopping command to the high voltage generator, turning off the power supply, or stopping the energy storage unit from providing energy to the high voltage generator.
In the alternative power protection method for a high voltage generator provided in the embodiment of the present application, as shown in fig. 3, a process of acquiring a preset energy acquisition duration in step S11 mainly includes:
s111, receiving the energy transmitted by the energy storage unit and acquiring the energy acquisition time length of the high-voltage generator.
In this embodiment, the high voltage generator needs to receive the energy transmitted by the energy storage unit, and at the same time, the time length information of the energy transmission is recorded by the timer of the control unit at the initial time of acquiring the energy of the high voltage generator.
S112, searching the corresponding preset energy acquisition time length in the matched energy protection table based on the energy acquisition time length of the high-voltage generator.
In this embodiment, an energy protection table is preset in the control unit, the preset energy protection table being obtained by experimental tests. When the working time length of the high-voltage generator exceeds the specific corresponding time length of the voltage value of the high-voltage generator, the corresponding power supply energy supply is in a high-current mode, and the service life of the power supply is influenced, so that an energy protection table is obtained by recording the time length and the voltage value, and when the time length recorded by the control unit exceeds the time length recorded in the energy protection table, the energy acquisition of the high-voltage generator is limited, and the service life of the power supply is ensured.
Optionally, the energy protection table is used to characterize the correspondence between the maximum limit current value and time. As shown in fig. 4, the energy graph is drawn according to the parameters in the energy protection table under the condition of 110KV, the abscissa of the energy graph represents the current value, the ordinate represents the energy supply duration, the coordinate point in the coordinate system may represent the threshold value of the power transmission in the preset time, the curve connected by the coordinate point may be the upper limit value of the power transmission obtained by the actual test in the preset time, when the actual data is above the curve, it represents that the power supply is in a high current state, and the actual data point needs to be suppressed below the curve, so as to limit the energy acquisition of the high voltage generator and ensure the service life of the power supply.
Optionally, in this embodiment, the user may obtain the maximum limit current values of the lower power supply with different voltage-current-time through actual measurement data, draw an energy graph as shown in fig. 4 according to the data, and then calculate the obtained time length of at least 1 maximum limit current value, or set in the upper computer according to the obtained time length of at least 1 maximum limit current value to generate the power supply energy graph, so that the high voltage generator can work in a region below the graph, and prolong the service time length of the power supply.
Specifically, the formula for obtaining the time length ms value under the limit maximum current mA value is as follows:
wherein a, b and c are expressed as preset coefficients, x is expressed as a maximum limit current value mA, and y is expressed as an acquisition time ms of the maximum limit current value.
Optionally, the preset coefficient may be a coefficient value set by software, or may be a coefficient value obtained by actually measuring data, and the known preset coefficient value and the set limit maximum current value mA value may be used to calculate the obtaining duration of the limit maximum current value, and by setting the obtaining duration of the limit maximum current value, whether the energy received by the monitoring high voltage generator exceeds the standard is determined.
Optionally, if the energy acquisition time length is equal to the preset energy acquisition time length, searching the preset energy acquisition time length corresponding to the corresponding energy protection table, and carrying out energy reminding.
In this embodiment, the control unit receives the energy obtaining duration of the high voltage generator, and when the energy obtaining duration is equal to the preset energy obtaining duration, extracts numerical information of the corresponding preset energy obtaining duration from the energy protection table pre-stored in the control unit, and reminds that the energy is about to exceed the limit through prompt information such as a display device or voice broadcasting.
Optionally, if the energy acquisition duration is less than the preset energy acquisition duration, continuing to record the duration of the energy acquisition duration.
In this embodiment, the duration of continuing to record the energy obtaining duration may be real-time comparison of whether the currently recorded energy obtaining duration can satisfy the preset energy obtaining duration until the real-time energy obtaining duration satisfies the preset energy obtaining duration or exceeds the preset energy obtaining duration.
According to the power protection method for the high-voltage generator, the energy acquisition time length is preset, and the time length and the energy acquisition time length are judged, so that the service life of the power supply is prolonged.
An embodiment of the present application provides a power protection device for a high voltage generator, as shown in fig. 5, where the power protection device for a high voltage generator includes:
the acquiring module 10 is configured to acquire an energy acquiring instruction, and the details refer to the description related to step S10 of the above method embodiment.
The judging module 11 is configured to judge whether the energy obtaining duration of the high voltage generator is longer than a preset energy obtaining duration based on the energy obtaining instruction, and the details refer to the related description of step S11 of the foregoing method embodiment.
And the limiting module 12 is configured to limit the high voltage generator to perform energy acquisition if the energy acquisition time period is longer than a preset energy acquisition time period, and for details, reference is made to the related description of step S12 of the above method embodiment.
According to the power supply protection device for the high-voltage generator, the energy acquisition instruction is acquired through the acquisition module, the judgment module is used for judging whether the acquired energy acquisition time is longer than the preset energy acquisition time or not, and the limiting module is used for limiting the energy acquisition of the high-voltage generator, so that the power supply for providing energy for the high-voltage generator is prevented from being in an energy output state all the time, the use of the power supply is facilitated to be increased, and the service life of the power supply is further prolonged.
An embodiment of the present application further provides an X-ray imaging system, as shown in fig. 6, including:
and an energy supply unit 5, wherein the energy supply unit 5 is connected with the energy storage unit 2 and is used for supplying energy to the energy storage unit 2. The energy supply unit 5 may be a lithium battery or a solar panel.
An energy storage unit 2, said energy storage unit 2 being connected to the high voltage generator 3 for providing the stored energy to the high voltage generator 3. The energy storage unit 2 may be an energy storage capacitor or an energy storage plate according to design requirements.
And the high-voltage generator 3 is respectively connected with the energy storage unit 2 and the control unit 4 and is used for receiving the energy provided by the energy storage unit 2 and the energy acquisition instruction sent by the control unit 4 or the energy stopping acquisition instruction. In the present embodiment, the user of the high voltage generator 3 receives electric power to boost the voltage so as to achieve the condition capable of generating X-rays.
And the control unit 4 is respectively connected with the high-voltage generator 3 and the energy supply unit 5, and is used for executing the power supply protection method of the high-voltage generator 3 provided by the embodiment of the application. In this embodiment, the control unit 4 may control by an upper computer, or may perform timing control by pre-stored software, and the control unit 4 may implement a power protection method of the high voltage generator 3 by controlling a control port.
According to the X-ray imaging system provided by the embodiment of the application, the energy supply unit is connected with the energy storage unit to supply energy to the high-voltage generator so as to generate X-rays for X-ray imaging, and the control unit is used for monitoring and limiting the energy of the high-voltage generator so as to prolong the service life of the power supply in the X-ray imaging system, avoid frequent replacement of the lithium battery and reduce the use cost of the X-ray imaging system.
In addition, the embodiment of the present application further provides an electronic device, as shown in fig. 7, where the electronic device may include a processor 13 and a memory 14, where the processor 13 and the memory 14 may be connected by a bus or other manner, and in fig. 7, the connection is exemplified by a bus.
The processor 13 may be a central processing unit (Central Processing Unit, CPU). The processor 13 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination thereof.
The memory 14 is used as a non-transitory computer readable storage medium, and may be used to store a non-transitory software program, a non-transitory computer executable program, and modules, such as program instructions/modules (e.g., the acquisition module 10, the determination module 11, and the restriction module 12 shown in fig. 5) corresponding to the key shielding method of the in-vehicle display device in the embodiment of the application. The processor 13 executes various functional applications of the processor and data processing, i.e. implements the power protection method of the high voltage generator in the above method embodiments, by running non-transitory software programs, instructions and modules stored in the memory 14.
Memory 14 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data created by the processor 13, etc. In addition, memory 14 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 14 may optionally include memory located remotely from processor 13, which may be connected to processor 13 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 14, which when executed by the processor 13, performs the power protection method of the high voltage generator in the embodiments shown in fig. 1 to 3.
The specific details of the electronic device may be understood in reference to the corresponding related descriptions and effects in the embodiments shown in fig. 1 to 3, which are not repeated herein.
It will be appreciated by those skilled in the art that implementing all or part of the above-described embodiment method may be implemented by a computer program to instruct related hardware, where the program may be stored in a computer readable storage medium, and the program may include the above-described embodiment method when executed. Wherein the storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), or a Solid State Drive (SSD); the storage medium may also comprise a combination of memories of the kind described above.
Although embodiments of the present application have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the application, and such modifications and variations are within the scope of the application as defined by the appended claims.
Claims (8)
1. A power protection method for a high voltage generator, applied to a control unit, the control unit being connected to a power source and the high voltage generator, the power source and the high voltage generator including an energy storage unit therebetween, the energy storage unit being configured to obtain electrical energy from the power source and supply power to the high voltage generator, the method comprising:
acquiring an energy acquisition instruction, wherein the energy acquisition instruction is a work starting instruction of the high-voltage generator;
judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length or not based on the energy acquisition instruction;
if the preset energy acquisition time is longer than the preset energy acquisition time, limiting the high-voltage generator to acquire energy;
the step of judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length comprises the following steps: judging whether the power supply under the corresponding duration is in a high-current working state or not;
the energy acquisition time period is longer than a preset energy acquisition time period, and comprises the following steps: the power supply is in a high-current working state;
the process for obtaining the preset energy obtaining duration comprises the following steps:
receiving energy transmitted by an energy storage unit and acquiring energy acquisition time length of the high-voltage generator;
searching a corresponding preset energy acquisition time length in a matched energy protection table based on the energy acquisition time length of the high-voltage generator; the energy protection table is used for representing the corresponding relation between the maximum limit current value and time, and the corresponding relation is represented by the following formula:
wherein a, b and c are expressed as preset coefficients, x is expressed as a limit maximum current value, and the unit is: mA, y is expressed as the acquisition duration of the preset limit maximum current value, in units of: ms.
2. The method according to claim 1, characterized in that it comprises:
if the energy acquisition time length is equal to the preset energy acquisition time length, searching the corresponding preset energy acquisition time length in the corresponding energy protection table, and carrying out energy reminding;
if the energy acquisition time length is smaller than the preset energy acquisition time length, continuing to record the duration time of the energy acquisition time length.
3. The method of claim 1, wherein the acquiring the energy acquisition duration of the high voltage generator comprises: recording is started from the initial moment when the energy storage unit is received to transmit energy.
4. The method of claim 1, wherein said limiting the energy harvesting of the high voltage generator comprises: and sending an energy stopping acquisition instruction of the high-voltage generator, and closing a power supply, or stopping the energy storage unit from supplying energy to the high-voltage generator.
5. A power protection device for a high voltage generator, the device being a control unit, the control unit being connected to a power source and the high voltage generator, the power source and the high voltage generator including an energy storage unit therebetween, the energy storage unit being configured to obtain electrical energy from the power source and supply power to the high voltage generator, the device comprising:
the energy acquisition module is used for acquiring an energy acquisition instruction, wherein the energy acquisition instruction is a work starting instruction of the high-voltage generator;
the judging module is used for judging whether the energy acquisition time length of the high-voltage generator is longer than a preset energy acquisition time length or not based on the energy acquisition instruction, and the process for acquiring the preset energy acquisition time length comprises the following steps: receiving energy transmitted by an energy storage unit and acquiring energy acquisition time length of the high-voltage generator; searching a corresponding preset energy acquisition time length in a matched energy protection table based on the energy acquisition time length of the high-voltage generator; the energy protection table is used for representing the corresponding relation between the maximum limit current value and time;
the limiting module is used for limiting the high-voltage generator to acquire energy if the energy acquisition time period is longer than a preset energy acquisition time period;
the judging module is further used for judging whether the power supply under the corresponding duration is in a high-current working state or not; the energy acquisition time period is longer than a preset energy acquisition time period, and comprises the following steps: the power supply is in a high-current working state;
the correspondence is expressed by the following formula:
wherein a, b and c are expressed as preset coefficients, x is expressed as a limit maximum current value, and the unit is: mA, y is expressed as the acquisition duration of the preset limit maximum current value, in units of: ms.
6. An X-ray imaging system, comprising:
the energy supply unit is connected with the energy storage unit and used for supplying energy to the energy storage unit;
the energy storage unit is connected with the high-voltage generator and used for providing the stored energy to the high-voltage generator;
the high-voltage generator is respectively connected with the energy storage unit and the control unit and is used for receiving the energy provided by the energy storage unit and the energy acquisition instruction sent by the control unit or stopping the energy acquisition instruction;
control unit connected to the high voltage generator and to the energy supply unit, respectively, for performing the power protection method of the high voltage generator according to any one of claims 1-4.
7. An electronic device, comprising:
a memory and a processor, said memory and said processor being communicatively coupled to each other, said memory having stored therein computer instructions, said processor executing the power protection method of the high voltage generator of any of claims 1-4 by executing said computer instructions.
8. A computer-readable storage medium storing computer instructions for causing the computer to perform the power protection method of the high voltage generator according to any one of claims 1 to 4.
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