CN113391662A - Real-time monitoring system for mri working state internet of things - Google Patents
Real-time monitoring system for mri working state internet of things Download PDFInfo
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- CN113391662A CN113391662A CN202110822923.5A CN202110822923A CN113391662A CN 113391662 A CN113391662 A CN 113391662A CN 202110822923 A CN202110822923 A CN 202110822923A CN 113391662 A CN113391662 A CN 113391662A
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- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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Abstract
The invention provides an mri working state Internet of things real-time monitoring system which is used for monitoring a multistage cooling device for controlling the temperature of liquid helium in mri, wherein the multistage cooling device comprises at least two cooling groups; the temperature monitoring module comprises at least one temperature monitoring element arranged on the cooling group, and the temperature monitoring element acquires temperature data of the cooling group and transmits the temperature data to the processing module; the invention enables an equipment manager to know the temperature change of the multistage cooling device in real time, can quickly find out the specific fault position when the multistage cooling device fails, avoids the increase of liquid helium consumption caused by unstable work of the multistage cooling device, and reduces the use cost of mri equipment.
Description
Technical Field
The invention relates to the field of mri equipment, in particular to an mri working state Internet of things real-time monitoring system.
Background
Mri magnetic resonance imaging technique is one of tomography, which uses magnetic resonance phenomenon to obtain electromagnetic signals from human body and reconstruct human body information, and is one of the commonly used techniques in modern medicine for scanning human body.
In the process of normal use of the mri equipment, the consumption of the liquid helium mainly reaches the upper limit of the heat quantity of a liquid helium container, so that the liquid helium is volatilized and consumed, the conventional liquid helium and the liquid helium container control the temperature through a cooling system to ensure that the liquid helium is not volatilized in a large quantity in normal use, and moreover, a gradient coil, a gradient power amplifier and a radio frequency power amplifier and a data processing and control system also need to ensure the stable and reliable working temperature through the cooling system, so that the working state of the cooling system determines the running condition and the use cost of the mri equipment.
Mri the cooling system among the equipment often includes multistage refrigerating system, in case partly breaks down in the cooling system, will lead to whole cooling system to go wrong for cooling system can't cool down liquid helium, and then makes liquid helium volatilize in a large number, makes the phenomenon of quenching appear in mri system even, and the cost of once handling the quenching often involves excitation and restoration magnet except the expense of liquid helium, therefore loses greatly, often takes about 200 ten thousand yuan.
At present, when the problem of the faults of the cooling system is solved, a manual inspection mode is still adopted, and the problems of time and labor consumption and low detection efficiency exist. The concrete expression is as follows: the existing troubleshooting work of the cooling system needs a worker to regularly check whether impurities exist on a condenser and a fan of an outdoor unit of the cooling system, check and record a liquid helium page every day, artificially calculate the volatilization rate of the liquid helium, and monitor whether the working sound of a cold head is normal or not in real time; in addition, when a worker enters an equipment maintenance interface to inquire the temperature of the cooling system, a manufacturer's maintenance password is needed, so that the maintenance of the mri equipment at present is highly dependent on the manufacturer, that is, during the operation of the system, equipment managers at all levels cannot display the real-time temperature of each key part of the system at any time and any place, and cannot prevent the system in time, so that the maintenance cost of the mri equipment is improved to a certain extent due to the fact that faults are invisible.
Disclosure of Invention
The invention aims to provide an mri working state Internet of things real-time monitoring system which can know the temperature change of a multistage cooling device in real time, can quickly find out a specific fault position when the multistage cooling device fails, avoids the increase of liquid helium consumption caused by unstable working of the multistage cooling device and reduces the use cost of mri equipment.
In order to solve the technical problem, the invention provides an mri working state internet of things real-time monitoring system which is used for monitoring a multistage cooling device for controlling the temperature of liquid helium in mri, wherein the multistage cooling device comprises at least two cooling groups; the temperature monitoring module comprises at least one temperature monitoring element arranged on the cooling group, and the temperature monitoring element acquires temperature data of the cooling group and transmits the temperature data to the processing module.
Further, multistage cooling device is including the one-level cooling group, second grade cooling group and the tertiary cooling group that connect gradually, wherein all is provided with the temperature monitoring element on one-level cooling group, second grade cooling group and the tertiary cooling group.
Further, one-level cooling group includes the one-level water-cooling machine, and first temperature sensor locates the output of one-level cooling group in order to obtain the output temperature of one-level water-cooling machine.
Furthermore, the secondary cooling group comprises a secondary water-cooling machine and a helium press which are sequentially connected, the second temperature sensor is arranged at the output end of the secondary water-cooling machine to obtain the output temperature of the secondary water-cooling machine, and the third temperature sensor is arranged at the output end of the helium press to obtain the output temperature of the helium press.
Further, comparing the output temperature of the helium compressor with the output temperature of the secondary water cooling machine to obtain the working state of the helium compressor.
Further, tertiary cooling group includes the switch board, and the air intake of switch board is arranged in to the fourth temperature sensor to acquire air intake temperature, and the punishment that the switch board was arranged in to the fifth temperature sensor is bitter altogether, in order to acquire the air outlet temperature.
And further, comparing the air inlet temperature with the air outlet temperature to acquire the working state of the three-stage cooling group.
Further, the temperature and humidity monitoring device further comprises an information sending module and a display device, wherein the information sending module is used for sending the monitoring temperature data of the temperature monitoring module and the temperature and humidity data between the magnets monitored by the temperature and humidity sensor.
Further, the display device comprises a fixed terminal and a mobile terminal.
When the mri equipment is used, the multistage cooling device cools the liquid helium and the liquid helium container, and the temperature monitoring module can monitor the temperature data of the multistage cooling device in real time, so that a worker can observe and know the temperature change and the specific working state of the multistage cooling device in real time; meanwhile, the arrangement of a plurality of cooling groups of the multistage cooling device is matched, and the temperature monitoring elements in the temperature monitoring module are used for independently monitoring the plurality of cooling groups, so that when the multistage cooling device breaks down, a worker can judge the specific fault position of the multistage cooling device according to the temperature change of each cooling group, the multistage cooling device is convenient to maintain, the maintenance efficiency of the multistage cooling device is increased, meanwhile, due to the fact that the maintenance efficiency of the multistage cooling device is improved, the liquid helium cannot be volatilized due to the fact that the multistage cooling device works unstably for a long time, the volatilization consumption of the liquid helium is reduced, and the use cost of mri equipment is reduced.
Drawings
FIG. 1 is a schematic flow diagram of the present invention.
Fig. 2 is a graph illustrating the temperature and humidity data of the real-time monitoring system during actual operation.
FIG. 3 is a display interface of a processing module of the real-time monitoring system of the present invention.
Fig. 4 is a display interface of the processing module of the real-time monitoring system according to the present invention when performing the early warning process.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
As shown in fig. 1 to 4, the present invention provides an mri working state internet of things real-time monitoring system, configured to monitor a multi-stage cooling device for controlling liquid helium temperature in the mri, where the multi-stage cooling device includes at least two cooling groups; the temperature monitoring module comprises at least one temperature monitoring element arranged on the cooling group, and the temperature monitoring element acquires temperature data of the cooling group and transmits the temperature data to the processing module.
Preferably, the multistage cooling device comprises a first-stage cooling group, a second-stage cooling group and a third-stage cooling group which are sequentially connected, wherein temperature monitoring elements are arranged on the first-stage cooling group, the second-stage cooling group and the third-stage cooling group.
When the mri equipment is used, the multistage cooling device cools the liquid helium and the liquid helium container, and the temperature monitoring module can monitor the temperature data of the multistage cooling device in real time, so that a worker can observe and know the temperature change and the specific working state of the multistage cooling device in real time; meanwhile, the arrangement of a plurality of cooling groups of the multistage cooling device is matched, and the temperature monitoring elements in the temperature monitoring module are used for independently monitoring the plurality of cooling groups, so that when the multistage cooling device breaks down, a worker can judge the specific fault position of the multistage cooling device according to the temperature change of each cooling group, the multistage cooling device is convenient to maintain, the maintenance efficiency of the multistage cooling device is increased, meanwhile, due to the fact that the maintenance efficiency of the multistage cooling device is improved, the liquid helium cannot be volatilized due to the fact that the multistage cooling device works unstably for a long time, the volatilization consumption of the liquid helium is reduced, and the use cost of mri equipment is reduced.
Preferably, the primary cooling group comprises a primary water cooler, and the first temperature sensor is arranged at the output end of the primary cooling group to acquire the output temperature of the primary water cooler.
Specifically, first temperature sensor establishes the output at first cooling group, sets up on the output of one-level water-cooling machine promptly for the output temperature of one-level water-cooling machine can carry out real-time detection through first temperature sensing, and then monitors the operating condition of one-level water-cooling machine, and in this scheme, the normal operating temperature of one-level water-cooling machine is 6-12 ℃.
Preferably, the secondary cooling group comprises a secondary water-cooling machine and a helium press which are connected in sequence, the second temperature sensor is arranged at the output end of the secondary water-cooling machine to obtain the output temperature of the secondary water-cooling machine, and the third temperature sensor is arranged at the output end of the helium press to obtain the output temperature of the helium press.
Specifically, the second temperature sensor is arranged at the output end of the secondary water-cooling machine, the normal output temperature of the secondary water-cooling machine is 19-22 ℃ in the scheme, and the output end of the secondary water-cooling machine is also the input end of the helium compressor, so that the temperature of the input end of the helium compressor is 19-22 ℃ in the scheme; meanwhile, the third temperature sensor is arranged at the output end of the secondary cooling unit, namely the output end position of the helium press, so that the second temperature sensor and the third temperature sensor are respectively positioned at two sides of the helium press for temperature monitoring, and the accuracy of temperature monitoring of the helium press is improved.
Preferably, the working state of the helium compressor is obtained by comparing the output temperature of the helium compressor with the output temperature of the secondary water cooling machine.
Specifically, the second temperature sensor detects the input temperature of the helium press, the third temperature sensor detects the output temperature of the helium press, the input temperature and the output temperature of the helium press are compared at the moment, the data difference value of the temperatures on two sides can be obtained, whether the helium press is in a normal working state or not is judged according to the temperature data difference value, so that whether the helium press has a fault or not is judged quickly, and the detection accuracy of the working state of the helium press is improved.
Preferably, the third-stage cooling unit comprises a power distribution cabinet, the fourth temperature sensor is arranged at the air inlet of the power distribution cabinet to acquire the temperature of the air inlet, and the fifth temperature sensor is arranged at the position of the power distribution cabinet to acquire the temperature of the air outlet.
Specifically, the power distribution cabinet is a GPA/EPC cabinet, the fourth sensor is arranged at an air inlet of the power distribution cabinet, namely the air inlet position of the GPA/EPC cabinet, and is used for detecting the air inlet temperature of the GPA/EPC cabinet, the fifth sensor is arranged at an air return opening of the power distribution cabinet, namely the air return opening position of the GPA/EPC cabinet, and is used for detecting the air return opening temperature of the GPA/EPC cabinet, so that the temperatures of two sides of the GPA/EPC cabinet are monitored through the fourth sensor and the fifth sensor, and the temperature monitoring accuracy of the GPA/EPC cabinet is improved.
Preferably, the working state of the third-stage cooling group is obtained by comparing the temperature of the air inlet with the temperature of the air outlet.
Specifically, the fourth sensor detects the air inlet temperature of the GPA/EPC cabinet, the fifth sensor detects the return air inlet temperature of the GPA/EPC cabinet, the air inlet temperature and the return air inlet temperature data are compared at the moment to obtain a temperature data difference value between the air inlet and the return air inlet, and the working state of the GPA/EPC cabinet is judged according to the temperature data difference value, so that whether the GPA/EPC cabinet is in fault or not can be judged quickly, and the detection accuracy of the working state of the GPA/EPC cabinet is improved.
Preferably, the temperature and humidity monitoring device further comprises a temperature and humidity sensor arranged between the magnets in the mri equipment and used for monitoring temperature and humidity data between the magnets.
Specifically, temperature and humidity data among magnets are monitored through a temperature and humidity sensor arranged among the magnets, as the muri device comprises the TX-BOX which integrates the radio frequency amplifier, the heat productivity is extremely high, once the environmental humidity of the TX-BOX is increased, condensed water is easily generated in the TX-BOX, the TX-BOX is damaged, and meanwhile, when the internal environmental temperature of the muri device is overhigh, the fluctuation of a magnetic field can be caused, so that the formation of artifacts is caused, the normal use of the muri device is not facilitated, the temperature and humidity data of the internal environment of the muri device can be effectively monitored through the temperature and humidity sensor, the conditions that the TX-BOX is damaged due to the condensed water are prevented, and the total failure rate of the muri device is reduced.
In the scheme, the internal environment temperature of the mri equipment is 18-22 ℃, and the environment humidity is 40-60%.
Preferably, the temperature and humidity monitoring system further comprises an information sending module and a display device, wherein the information sending module is used for sending the monitoring temperature data of the temperature monitoring module and the temperature and humidity data between the magnets monitored by the temperature and humidity sensor.
Specifically, after temperature monitoring module and temperature and humidity sensor detected corresponding temperature data or humidity data, carry temperature and humidity data to information sending module department, transmit temperature and humidity data to display device department through information sending module afterwards, so that the staff carries out real-time looking over to each position of multistage cooling device and mri equipment internal environment temperature and humidity data, improve staff's convenience of operation, increase the staff and know the accuracy to mri equipment's whole, also made things convenient for the staff to look over the temperature and humidity data everywhere of mri equipment at any time simultaneously, in order to prevent the mri equipment from breaking down.
Preferably, the display device includes a fixed terminal and a mobile terminal.
Specifically, the fixed terminal comprises a fixed computer, an equipment display panel and the like, and the mobile terminal comprises a mobile phone end, a mobile computer and the like.
In the scheme, the mobile terminal is preferably a mobile phone end, the temperature and humidity data of each monitoring part are displayed by adopting a mobile phone WeChat end, the upper limit value of the temperature and humidity data can be set at the WeChat end, and when the temperature and humidity data of each monitoring part exceed the upper limit value, the alarm prompt is carried out on a worker through the WeChat end, so that the worker can find the fault of the mri equipment in time.
It is worth mentioning that the real-time monitoring system provided by the scheme can not only obtain the temperature of each monitoring point in real time, but also realize real-time data summarization report, early warning processing and information push.
The process of data summary reporting is as follows:
the processing module acquires temperature and humidity data of each monitoring point through the temperature monitoring module and the temperature and humidity sensor, summarizes the data into a curve graph, and displays the curve graph as shown in fig. 2.
The early warning processing process comprises the following steps:
exemplarily, the normal operating temperature of a primary water cooler is preset in the processing module, the processing module compares the output temperature of the primary water cooler with the normal operating temperature of the primary water cooler after acquiring the output temperature of the primary water cooler, and if the processing module processes and finds that the operating temperature of the primary water cooler is abnormal, alarm information is sent.
Similarly, the helium compressor in the secondary cooling group and the power distribution cabinet in the tertiary cooling group also adopt the early warning processing process.
The information pushing process comprises the following steps: the processing module acquires temperature and humidity data of each monitoring point through the temperature monitoring module and the temperature and humidity sensor, summarizes the temperature and humidity data into a curve graph, and then pushes the temperature and humidity data and the curve graph to the display device through the information sending module.
Has the advantages that: the temperature and humidity data can be effectively and clearly collected through the processing module, so that when a user observes the temperature and humidity data of the mri equipment, the temperature and humidity data are more clear and visual, and when the temperature of a certain position in the multistage cooling device exceeds a set temperature, the user can be timely prompted, so that the fault problem can be timely solved, and the problem that liquid helium is volatilized in a large amount due to long fault time is avoided.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a mri operating condition thing networking real-time monitoring system for to the multistage cooling device of the control liquid helium temperature in the mri monitor, wherein multistage cooling device includes two at least cooling groups, its characterized in that: the temperature monitoring module comprises at least one temperature monitoring element arranged on the cooling group, and the temperature monitoring element acquires temperature data of the cooling group and transmits the temperature data to the processing module.
2. The mri operating state internet of things real-time monitoring system of claim 1, wherein: the multistage cooling device comprises a first-stage cooling group, a second-stage cooling group and a third-stage cooling group which are sequentially connected, wherein temperature monitoring elements are arranged on the first-stage cooling group, the second-stage cooling group and the third-stage cooling group.
3. The mri operating state internet of things real-time monitoring system of claim 2, wherein: the one-level cooling group comprises a one-level water cooler, and the first temperature sensor is arranged at the output end of the one-level cooling group to obtain the output temperature of the one-level water cooler.
4. The mri operating state internet of things real-time monitoring system of claim 2, wherein: the secondary cooling group comprises a secondary water-cooling machine and a helium press which are sequentially connected, the second temperature sensor is arranged at the output end of the secondary water-cooling machine to obtain the output temperature of the secondary water-cooling machine, and the third temperature sensor is arranged at the output end of the helium press to obtain the output temperature of the helium press.
5. The mri operating state internet of things real-time monitoring system of claim 4, wherein: and comparing the output temperature of the helium compressor with the output temperature of the secondary water cooling machine to obtain the working state of the helium compressor.
6. The mri operating state internet of things real-time monitoring system of claim 2, wherein: the third-level cooling group comprises a power distribution cabinet, a fourth temperature sensor is arranged at an air inlet of the power distribution cabinet to acquire the temperature of the air inlet, and a fifth temperature sensor is arranged at a position of the power distribution cabinet to acquire the temperature of the air outlet.
7. The mri operating state internet of things real-time monitoring system of claim 6, wherein: and comparing the air inlet temperature with the air outlet temperature to obtain the working state of the third-stage cooling group.
8. The mri operating state internet of things real-time monitoring system of claim 1, wherein: the temperature and humidity monitoring system further comprises an information sending module and a display device, wherein the information sending module is used for sending the monitoring temperature data of the temperature monitoring module and the temperature and humidity data between the magnets monitored by the temperature and humidity sensor.
9. The mri operating state internet of things real-time monitoring system of claim 8, wherein: the display device comprises a fixed terminal and a mobile terminal.
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Cited By (1)
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Application publication date: 20210914 |