CN111134676A - Control method of wireless charging system - Google Patents
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- CN111134676A CN111134676A CN201911402032.3A CN201911402032A CN111134676A CN 111134676 A CN111134676 A CN 111134676A CN 201911402032 A CN201911402032 A CN 201911402032A CN 111134676 A CN111134676 A CN 111134676A
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- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
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Abstract
The application relates to a control method of a wireless charging system, which solves the problem that the simultaneous work of a radio frequency coil and wireless power supply equipment possibly generates electromagnetic interference by determining that different wireless power supply equipment supplies power to the radio frequency coil in the magnetic resonance imaging system when the magnetic resonance imaging system is in different running states.
Description
Technical Field
The application relates to the technical field of medical imaging, in particular to a control method of a wireless charging system.
Background
Currently, wireless power supply is a technical trend in magnetic resonance imaging systems, which makes magnetic resonance scanning faster and more convenient. Wireless power supply schemes in a magnetic resonance system are generally classified into an active scheme and a passive scheme, wherein the active scheme is a power supply mode using a power receiving coil to match an external power supply. Passive solutions are power supplies that do not use additional power assistance. The energy collected by the passive scheme is weak radio frequency analog signal energy, the collection efficiency is low, the transmission energy is less, the use is limited, the manufacturing cost is high, and the passive scheme is rarely applied at present.
The traditional power supply mode adopting the active scheme has the problems that the load of the magnetic resonance imaging system is wirelessly supplied by directly using a coil coupling mode, an electromagnetic signal can be generated in the power supply process, the magnetic resonance scanning signal generated in the scanning process of the magnetic resonance imaging system and the magnetic resonance imaging system can interfere with each other, the signal-to-noise ratio of the magnetic resonance scanning signal is reduced, and the scanning efficiency and the power supply efficiency are influenced.
Disclosure of Invention
Therefore, it is necessary to provide a control method for a wireless charging system, aiming at the problem that electromagnetic signals generated during the power supply process of the active wireless power supply scheme and scanning signals generated during the scanning of the magnetic resonance imaging system interfere with each other.
The application provides a control method of a wireless charging system, which is applied to the wireless charging system matched with a magnetic resonance imaging system for use, and comprises the following steps:
acquiring the running state of the magnetic resonance imaging system;
and determining wireless power supply equipment for supplying power to a radio frequency coil in the magnetic resonance imaging system according to the running state of the magnetic resonance imaging system.
The application relates to a control method of a wireless charging system, which solves the problem that the simultaneous work of a radio frequency coil and wireless power supply equipment possibly generates electromagnetic interference by determining that different wireless power supply equipment supplies power to the radio frequency coil in the magnetic resonance imaging system when the magnetic resonance imaging system is in different running states.
Drawings
Fig. 1 is a flowchart illustrating a control method of a wireless charging system according to an embodiment of the present disclosure;
fig. 2 is a flowchart illustrating a control method of a wireless charging system according to an embodiment of the present disclosure;
fig. 3 is a flowchart illustrating a control method of a wireless charging system according to an embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a control method of a wireless charging system according to an embodiment of the present disclosure;
fig. 5 is a flowchart illustrating a control method of a wireless charging system according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a wireless charging system according to an embodiment of the present application;
fig. 7 is a schematic diagram of a wireless charging system according to an embodiment of the present application when used with a magnetic resonance imaging system;
fig. 8 is a schematic structural diagram of a wireless charging system according to an embodiment of the present application;
fig. 9 is a schematic diagram of a wireless charging system used in conjunction with a magnetic resonance imaging system according to an embodiment of the present application.
Reference numerals:
10 wireless charging system
100 coil induction type wireless power supply device
110 transmitting coil module
111 transmitting coil
112 power supply analog switch
120 receiving coil module
121 receiving coil
200 battery device
300 processor
400 processing module
20 magnetic resonance imaging system
21 radio frequency coil
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The application provides a control method of a wireless charging system.
The control method of the wireless charging system provided by the present application is applied to the wireless charging system 10 used in conjunction with the magnetic resonance imaging system 20.
The control method of the wireless charging system provided by the application is not limited to the execution subject. Alternatively, the main body of execution of the control method of the wireless charging system may be the wireless charging system 10. Alternatively, the main body of execution of the control method of the wireless charging system may be the processor 300 in the wireless charging system 10. The wireless charging system 10 includes a processor 300 and a wireless power supply. The wireless power supply device is communicatively connected to the magnetic resonance imaging system 20.
As shown in fig. 1, in an embodiment of the present application, the method for controlling a wireless charging system includes the following steps S100 to S200:
s100, acquiring the operating state of the magnetic resonance imaging system 20.
In particular, the magnetic resonance imaging system 20 has different operating states. The different operational states determine that the magnetic resonance imaging system 20 performs different actions, such as a scanning action, pausing the scanning action into a rest state, or other actions.
And S200, determining a wireless power supply device for supplying power to the radio frequency coil 21 in the magnetic resonance imaging system 20 according to the running state of the magnetic resonance imaging system 20.
In particular, the magnetic resonance imaging system 20 performs excitation of magnetic resonance signals by the radio frequency coil 21, i.e. magnetic resonance signals are acquired by the radio frequency coil 21. In order to obtain a good signal, it is desirable to place the radio frequency coil as close as possible to the imaging region, i.e., to the scanning position of the magnetic resonance imaging system 20, such as the legs, chest, abdomen, etc. Therefore, in order to meet the scanning requirements of different scanning positions, different rf coils 21 need to be selected, for example, when scanning a leg, an rf coil 21 matched with the leg needs to be selected, and the rf coil 21 is attached to the surface of the leg.
The wireless power supply device supplies power to the radio frequency coil 21. When the magnetic resonance imaging system 20 is in a scanning state, a magnetic resonance scanning signal is generated, and electromagnetic interference is generated between the magnetic resonance scanning signal and the wireless power supply equipment. In this step, different wireless power supply devices are selected and determined by the processor 300 according to different operating states, so that the problem that the radio frequency coil 21 and the wireless power supply devices may generate electromagnetic interference when working at the same time can be solved.
In this embodiment, when the magnetic resonance imaging system 20 is in different operating states, it is determined that different wireless power supply devices supply power to the radio frequency coil 21 in the magnetic resonance imaging system 20, so that a problem that electromagnetic interference may be generated when the radio frequency coil 21 and the wireless power supply devices operate simultaneously is solved.
As shown in fig. 2, in an embodiment of the present application, the step S100 includes the following steps:
s110, acquiring scanning information of the magnetic resonance imaging system 20, and determining an operating state of the magnetic resonance imaging system 20 according to the scanning information.
In particular, the host of the magnetic resonance imaging system 20 may store scan information. Before each scanning operation, the processor 300 of the wireless charging system 10 may obtain the scanning information from the host and store the scanning information locally in the wireless charging system 10. The scan information may be indicative of the operating state of the magnetic resonance imaging system 20 at each time node.
In this embodiment, by acquiring the scanning information of the magnetic resonance imaging system 20 and determining the operating state of the magnetic resonance imaging system 20 according to the scanning information, the operating state of the magnetic resonance imaging system 20 is conveniently and quickly known in real time, and the trouble of sending an instruction to the magnetic resonance imaging system to query the operating state of the magnetic resonance imaging system 20 is avoided.
In an embodiment of the present application, the operational states of the magnetic resonance imaging system 20 include a scanning state and a non-scanning state.
Specifically, when the magnetic resonance imaging system 20 is in a scan state, magnetic resonance scan signals are generated. When the magnetic resonance imaging system 20 is in the non-scanning state, which is a rest state, no magnetic resonance scanning signal is generated.
In this embodiment, the operating state of the magnetic resonance imaging system 20 is divided into a scanning state and a non-scanning state, which is convenient for providing a basis for selecting and determining subsequent wireless power supply devices, and avoids electromagnetic signal interference.
In an embodiment of the present application, the wireless power supply apparatus is a coil induction type wireless power supply device 100 or a battery device 200.
Specifically, the wireless charging system 10 may include both the coil inductive wireless power supply apparatus 100 and the battery apparatus 200 to cope with different operation states.
In this embodiment, the wireless power supply device is set as the coil induction type wireless power supply device 100 or the battery device 200, so that different operating states can be handled, and electromagnetic signal interference between the wireless power supply device and the magnetic resonance imaging system 20 can be eliminated to the greatest extent.
Referring to fig. 2, in an embodiment of the present application, the step S200 includes the following steps:
s210, when the operating state of the magnetic resonance imaging system 20 is the scanning state, determining that the wireless power supply device is the battery apparatus 200. Further, the battery device 200 is controlled to supply power to the radio frequency coil 21.
Specifically, the wireless charging system 10 may include both the coil inductive wireless power supply apparatus 100 and the battery apparatus 200. The coil inductive wireless power supply apparatus 100 includes a transmitting coil module 110 and a receiving coil module 120. There is a distance between the transmit coil module 110 and the receive coil module 120. The transmitting coil module 110 may include a transmitting coil 111 and a power supply analog switch 112, and the receiving coil module 120 may include a receiving coil 121. When the power supply analog switch 112 is turned on, the power supply analog switch 112 and the transmitting coil 111 form a switch driving circuit to generate an alternating electromagnetic field. The receiving coil 121 generates an induced electromagnetic field, thereby generating an induced current.
When the operation state of the magnetic resonance imaging system 20 is the scanning state, the processor 300 controls the power supply analog switch 112 to be in the off state, and at this time, the coil induction type wireless power supply device 100 does not work and does not generate an electromagnetic signal. At this time, the wireless power supply apparatus is the battery device 200. By controlling the battery device 200 to be in the discharging state, the electric energy stored in the battery device 200 supplies power to the radio frequency coil 21 to support the execution of normal scanning operation. At this time, the electromagnetic signals and electromagnetic fields excited during the scanning process of the magnetic resonance imaging system 20 are not interfered, and the imaging quality is good.
In the embodiment, the battery device 200 is used for supplying power to the radio frequency coil 21 in the magnetic resonance imaging system 20 when the magnetic resonance imaging system 20 performs scanning imaging, so that the problem of electromagnetic interference generated by the magnetic resonance imaging system 20 and a wireless power supply device is solved.
As shown in fig. 3, in an embodiment of the present application, the step S200 further includes the following steps:
s220, when the operating state of the magnetic resonance imaging system 20 is the non-scanning state, it is determined that the wireless power supply apparatus is the coil induction type wireless power supply device 100. Further, the coil inductive wireless power supply device 100 is controlled to supply power to the radio frequency coil 21.
Specifically, when the operation state of the magnetic resonance imaging system 20 is the non-scanning state, it can be understood that the magnetic resonance imaging system 20 is in the rest state, and no electromagnetic signal or electromagnetic field is generated. In this case, the coil induction type wireless power feeding apparatus 100 is used as the wireless power feeding device. At this time, the processor 300 controls the power supply analog switch 112 in the coil induction type wireless power supply device 100 to be turned on, and the power supply analog switch 112 and the transmitting coil 111 form a switch driving circuit to generate an alternating electromagnetic field. The receiving coil 121 generates an induced electromagnetic field, thereby generating an induced current to power the rf coil 21.
In this embodiment, when the magnetic resonance imaging system 20 is in the non-scanning imaging intermittent period, the radio frequency coil 21 in the magnetic resonance imaging system 20 is powered by using a wireless power supply mode, which is convenient and fast, and does not generate electromagnetic interference, and the power supply efficiency is high.
As shown in fig. 4, in an embodiment of the present application, after the step S220, the step S200 further includes:
s230, while controlling the coil inductive wireless power supply apparatus 100 to supply power to the radio frequency coil 21, controlling the coil inductive wireless power supply apparatus 100 to supply power to the battery apparatus 200.
Specifically, while the coil inductive wireless power supply apparatus 100 is controlled to supply power to the radio frequency coil 21 in the non-scanning state, in order to ensure that the battery apparatus 200 has a sufficiently long endurance time in the scanning state, the processor 300 also controls the coil inductive wireless power supply apparatus 100 to supply power to the battery apparatus 200.
In this embodiment, the transmitting coil 111 is controlled to supply power to the rf coil 21 in the non-scanning state, and the coil inductive wireless power supply apparatus 100 is also controlled to supply power to the battery apparatus 200, so that the battery apparatus 200 can continue to run for a long time when supplying power to the rf coil 21 in the scanning state, and the trouble of replacing the battery apparatus 200 is eliminated.
In an embodiment of the present application, the scan information at least includes scan position information and scan sequence information.
In particular, the scan time series information includes different actions performed by the magnetic resonance imaging system 20 at different time nodes, in particular whether the scan action or the pause scan action, or other actions. The scanning position information contains information of different scanning positions for the object to be scanned, such as leg, chest, etc.
In this embodiment, by setting that the scanning information at least includes scanning position information and scanning sequence information, a comprehensive data basis is provided for the wireless charging system 10 to select a suitable wireless power supply device.
As shown in fig. 5, in an embodiment of the present application, the coil inductive wireless power supply apparatus 100 includes a transmitting coil module 110 and a receiving coil module 120. The wireless charging system 10 includes a plurality of transmit coil modules 110 and a plurality of receive coil modules 120. When the operating state of the magnetic resonance imaging system 20 is the non-scanning state, after the step S220, the method for controlling the wireless charging system further includes the following steps S310 to S330:
and S310, determining the scanning position of the magnetic resonance imaging system 20 and the radio frequency coil 21 matched with the scanning position according to the scanning position information.
Specifically, in the present embodiment, the wireless charging system 10 includes a plurality of transmitting coil modules 110 and a plurality of receiving coil modules 120. In performing the scanning operation, the magnetic resonance imaging system 20 is disposed between the scans. The radio frequency coil 21 is attached to a surface of a scanning position of the object to be scanned, for example, the chest surface. One for each scanning position of the radio frequency coils 21.
S320, the receiving coil module 120 connected to the radio frequency coil 21 is determined as a target receiving coil module.
Specifically, since there are a plurality of radio frequency coils 21, and each radio frequency coil 21 corresponds to one scanning position, it can be understood that there are a plurality of receiving coil modules 120, and each receiving coil module 120 is electrically connected to one radio frequency coil. At this step, the processor 300 may determine the receiving coil module 120 matched with the radio frequency coil 21 as a target receiving coil module. The transmit coil module 110 needs to power the target receive coil module.
S330, selecting the transmitting coil module 110 with the best power supply effect according to the distance between the plurality of transmitting coil modules 110 and the target receiving coil module, and establishing connection between the transmitting coil module 110 with the best power supply effect and the target receiving coil module.
In particular, the foregoing steps have identified the target receive coil module. The multiple transmit coil modules 110 may be placed at different locations between scans to maintain wireless connections to different receive coil modules 120. The transmit coil module 110 may be located on the surface of the bed, the side of the bed, the wall of the scanning room, etc. In order to enable good signal transmission between the transmitting coil module 110 and the target receiving coil module, each transmitting coil module 110 is located at a certain distance from the target receiving coil module. Therefore, when the target receiving coil module is determined, which corresponds to the position of the unique receiving coil module 120, the step can determine the unique transmitting coil module 110 with the best signal transmission effect with the target receiving coil module, i.e. the transmitting coil module 110 with the best power supply effect.
In this embodiment, by comparing the distances between different transmitting coil modules 110 and the target receiving coil module, the transmitting coil module 110 with the best power supply effect is connected with the target receiving coil module, so as to ensure the optimization of the electromagnetic signal stability in the wireless charging process.
In an embodiment of the present application, the step S330 includes the following steps S331 to S333:
and S331, reading the position information of the target receiving coil module.
Specifically, the position information of the target receive coil module may be a coordinate point of a position where the target receive coil module is located in a three-dimensional coordinate system set in the scan room.
The wireless charging system 10 may locally pre-store the information table of the receiving coil module 120, as shown in table 1:
table 1-receiving coil module information table
After determining the target receiving coil module, the processor 300 may obtain a coordinate point of a position where the target receiving coil module is located according to table 1 as the position information of the target receiving coil module.
S332, sequentially calculating the distance between each transmitting coil module 110 and the target receiving coil module according to the position information of the target receiving coil module, and calculating a plurality of power supply distances.
Specifically, according to the coordinate point of the position of the target receiving coil module in table 1, the distance between each transmitting coil module 110 and the target receiving coil module can be calculated, so as to obtain a plurality of power supply distances.
S333, comparing the values of the plurality of power supply distances, and selecting the transmitting coil module 110 corresponding to the power supply distance with the smallest value as the transmitting coil module 110 with the best power supply effect.
Specifically, based on the minimum power supply distance selection principle, the transmitting coil module 110 corresponding to the minimum power supply distance is taken as the transmitting coil module 110 with the best power supply effect.
In this embodiment, the transmitting coil module 110 with the minimum distance from the position of the target receiving coil module is selected as the transmitting coil module 110 with the best power supply effect, so that the distance between the target receiving coil module and the transmitting coil module 110 is the closest, and the wireless charging effect is the best.
In an embodiment of the present application, the step S333 further includes the following steps:
s333a, it is determined whether the number of the transmitting coil modules 110 corresponding to the power supply distance having the smallest value is 1.
Specifically, it may happen that the transmitting coil module 110 corresponding to the power supply distance with the smallest value is not unique, and in this embodiment, it is necessary to obtain the unique transmitting coil module 110 with the best power supply effect, so that a subsequent further screening step needs to be performed.
S333b, if the number of the transmitting coil modules 110 corresponding to the power supply distance with the smallest value is 1, the transmitting coil module 110 corresponding to the power supply distance with the smallest value is the transmitting coil module 110 with the best power supply effect.
Specifically, if there is only one transmitting coil module 110 with the minimum power supply distance, the distance between the transmitting coil module 110 and the target receiving coil module is the closest, the wireless charging effect is the best, and the transmitting coil module 110 is selected as the transmitting coil module 110 with the best power supply effect.
And S333c, if the number of the transmitting coil modules 110 corresponding to the power supply distance with the minimum numerical value is not 1, sequentially calculating the model matching degree between the transmitting coil module 110 corresponding to the power supply distance with the minimum numerical value and the target receiving coil module according to the model information, and calculating to obtain a plurality of model matching degrees.
Specifically, the first priority of the transmitting coil module 110 with the best power supply effect is selected based on the minimization of the power supply distance. If the number of the transmitting coil modules 110 corresponding to the power supply distance with the minimum value is not 1, it indicates that the number of the transmitting coil modules 110 with the minimum power supply distance is greater than 1. For example, the minimum power supply distance is 1 meter, and at the same time, 2 transmitting coil modules 110 are 1 meter away from the target receiving coil module, and at this time, it cannot be simply determined which transmitting coil module 110 is the transmitting coil module with the best power supply effect. At this time, the selection principle of the second priority needs to be started: and (5) a model matching degree principle. The transmit coil module 110 is of a type, as is the target receive coil module. The model number includes many meanings such as a manufacturer, a type of device, the number and kind of components arranged therein, and the like. The transmitting coil module 110 and the receiving coil module 120 manufactured by the same manufacturer have higher model matching degree. The model matching degrees of the transmitting coil module 110 and the target receiving coil module may be calculated through a preset model matching degree algorithm.
And S333d, selecting the transmitting coil module 110 with the largest model matching degree value as the transmitting coil module 110 with the best power supply effect.
In particular, the model matching degree may be presented in percentage form, for example 90%, 70%. The larger the model matching degree is, the better the wireless charging effect is and the more stable the charging current is after the transmitting coil module 110 is matched with the target receiving coil module. At this time, the transmitting coil module 110 with the largest model matching degree value is selected as the transmitting coil module 110 with the best power supply effect.
In this embodiment, by comparing the model matching degrees of different transmitting coil modules 110 and a target receiving coil module, and selecting the transmitting coil module 110 with the largest model matching degree value as the transmitting coil module 110 with the best power supply effect, the current stability in the wireless charging process is ensured to be optimized, and when the power supply distances are the same, a selecting method of the transmitting coil module 110 with the best power supply effect is provided.
The present application further provides a wireless charging system 10. As shown in fig. 6 and 7, the wireless charging system 10 includes a processor 300, a coil induction type wireless power supply apparatus 100, and a battery apparatus 200. The coil inductive wireless power supply apparatus 100 includes a transmitting coil module 110 and a receiving coil module 120. The transmitting coil module 110 includes a transmitting coil and a power supply analog switch 112 electrically connected to each other. The receiving coil module 120 includes a receiving coil 121. The receive coil module 120 is electrically connected to the radio frequency coil 21 in the magnetic resonance system. Specifically, the receiving coil 121 is electrically connected to the radio frequency coil 21. The battery device 200 is electrically connected to the radio frequency coil 21. The processor 300 is electrically connected to the transmitting coil module 110, the receiving coil module 120 and the battery device 200, respectively.
The receiving coil module 120 may be electrically connected with the battery device 200. The transmitting coil module 110 and the receiving coil module 120 are located at a distance. When the operation state of the magnetic resonance imaging system 20 is a non-scanning state, the power supply analog switch 112 is turned on, and the power supply analog switch 112 and the transmitting coil form a switch driving circuit to generate an alternating electromagnetic field. The receiving coil 121 generates an induced electromagnetic field, thereby generating an induced current to simultaneously power the rf coil 21 and the battery device 200.
When the operation state of the magnetic resonance imaging system 20 is the scanning state, the processor 300 controls the power supply analog switch 112 to be in the off state, and at this time, the coil induction type wireless power supply device 100 does not work and does not generate an electromagnetic signal. At this time, the battery device 200 is controlled to be in a discharging state, so that the electric energy stored in the battery device 200 supplies power to the radio frequency coil 21 to support the execution of normal scanning operation. At this time, the electromagnetic signals and electromagnetic fields excited during the scanning process of the magnetic resonance imaging system 20 are not interfered, and the imaging quality is good.
As shown in fig. 8 and 9, the wireless charging system 10 may further include a processing module 400, disposed between the receiving coil module 120 and the battery device 200, for performing filtering processing and rectification processing on the induced current generated by the receiving coil 121, and outputting the filtered induced current to the battery device 200 or directly outputting the rectified induced current to the radio frequency coil 21. The processing module 400 is electrically connected to the radio frequency coil 21.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A control method of a wireless charging system is applied to the wireless charging system used in cooperation with a magnetic resonance imaging system, and is characterized by comprising the following steps:
acquiring the running state of the magnetic resonance imaging system;
and determining wireless power supply equipment for supplying power to a radio frequency coil in the magnetic resonance imaging system according to the running state of the magnetic resonance imaging system.
2. The method for controlling a wireless charging system according to claim 1, wherein the step of acquiring the operating state of the magnetic resonance imaging system comprises:
and acquiring scanning information of the magnetic resonance imaging system, and determining the running state of the magnetic resonance imaging system according to the scanning information.
3. The method of claim 2, wherein the operational state of the magnetic resonance imaging system comprises a scanning state and a non-scanning state.
4. The method of claim 3, wherein the wireless power supply apparatus is a coil induction type wireless power supply device or a battery device.
5. The method of claim 4, wherein the step of determining a wireless power supply device for supplying power to a radio frequency coil in the magnetic resonance imaging system according to the operation status of the magnetic resonance imaging system comprises:
and when the running state of the magnetic resonance imaging system is a scanning state, determining that the wireless power supply equipment is the battery device, and controlling the battery device to supply power to the radio frequency coil.
6. The method of claim 5, wherein the step of determining a wireless power supply device for supplying power to a radio frequency coil in the magnetic resonance imaging system according to the operation status of the magnetic resonance imaging system further comprises:
and when the running state of the magnetic resonance imaging system is a non-scanning state, determining that the wireless power supply equipment is the coil induction type wireless power supply device, and controlling the coil induction type wireless power supply device to supply power to the radio frequency coil.
7. The method of claim 6, wherein the step of determining a wireless power supply device for supplying power to a radio frequency coil in the magnetic resonance imaging system according to the operation status of the magnetic resonance imaging system further comprises:
and when the coil induction type wireless power supply device is controlled to supply power to the radio frequency coil, the coil induction type wireless power supply device is also controlled to supply power to the battery device.
8. The method of claim 7, wherein the scanning information at least includes scanning position information and scanning sequence information.
9. The method of claim 8, wherein the coil inductive wireless power supply device comprises a transmitting coil module and a receiving coil module, and the wireless charging system comprises a plurality of transmitting coil modules and a plurality of receiving coil modules;
when the operation state of the magnetic resonance imaging system is a non-scanning state, after the step of determining that the wireless power supply device is the coil induction type wireless power supply device and controlling the coil induction type wireless power supply device to supply power to the radio frequency coil, the control method of the wireless charging system further comprises:
according to the scanning position information, determining a scanning position of the magnetic resonance imaging system and a radio frequency coil matched with the scanning position;
determining a receiving coil module connected with the radio frequency coil as a target receiving coil module;
and selecting the transmitting coil module with the best power supply effect according to the distance between the plurality of transmitting coil modules and the target receiving coil module, and establishing connection between the transmitting coil module with the best power supply effect and the target receiving coil module.
10. The method of claim 9, wherein the step of selecting the transmitting coil module with the best power supply effect according to the distances between the plurality of transmitting coil modules and the target receiving coil module, and connecting the transmitting coil module with the best power supply effect with the target receiving coil module comprises:
reading position information of the target receiving coil module;
sequentially calculating the distance between each transmitting coil module and the target receiving coil module according to the position information of the target receiving coil module, and calculating to obtain a plurality of power supply distances;
and comparing the values of the plurality of power supply distances, and selecting the transmitting coil module corresponding to the power supply distance with the minimum value as the transmitting coil module with the best power supply effect.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911402032.3A CN111134676B (en) | 2019-12-30 | 2019-12-30 | Control method of wireless charging system |
| EP20905703.3A EP4064984A4 (en) | 2019-12-27 | 2020-12-28 | MAGNETIC RESONANCE IMAGING |
| PCT/CN2020/140383 WO2021129880A1 (en) | 2019-12-27 | 2020-12-28 | Magnetic resonance imaging apparatus |
| US17/809,268 US20220322958A1 (en) | 2019-12-27 | 2022-06-27 | Magnetic resonance imaging apparatus |
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| CN201911402032.3A CN111134676B (en) | 2019-12-30 | 2019-12-30 | Control method of wireless charging system |
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| CN111134676A true CN111134676A (en) | 2020-05-12 |
| CN111134676B CN111134676B (en) | 2022-09-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021129880A1 (en) * | 2019-12-27 | 2021-07-01 | Shanghai United Imaging Healthcare Co., Ltd. | Magnetic resonance imaging apparatus |
| CN115381425A (en) * | 2021-05-24 | 2022-11-25 | 上海联影医疗科技股份有限公司 | Magnetic resonance scanning method, magnetic resonance scanning device and computer readable storage medium |
| CN119818197A (en) * | 2024-11-22 | 2025-04-15 | 深圳瑞格泰科医疗科技有限公司 | High-pressure injector trolley with magnetic resonance state detection function and control method |
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