KR102560880B1 - Power supply system and power supply method for negative pressure container - Google Patents

Abstract

The negative pressure container power supply system of the present invention includes a first power supply module, a second power supply module, and a power quality analysis module. The power quality analysis module extracts power information supplied from the first power supply module and determines whether power is supplied to the inside of the container. When it is determined that the power supplied from the first power supply module is inadequate, power to the first power supply module is cut off, and the second power supply module is controlled to supply power to the inside of the container.
Accordingly, the present invention can stably supply power to the inside of the container.

Description

Negative pressure container power supply system and power supply method {Power supply system and power supply method for negative pressure container}

The present invention relates to a negative pressure container power supply system and power supply method.

Corona virus is a new respiratory infectious disease that threatens humanity following SARS and MERS, and is currently infecting a large population around the world. In order to prevent the spread of infectious diseases, COVID-19 diagnosis is being conducted when there are suspected symptoms, and efforts are being made to detect confirmed cases early by preemptively conducting diagnoses even when there are no suspicious symptoms.

In a general clinic installed in a hospital or public health center, it is difficult to efficiently perform an inspection for a large number of inspectors, and a mobile inspection system has been proposed to solve this problem.

Mobile inspection systems are mainly manufactured using containers. The container has the advantage that an internal space is secured at the same time as the container is manufactured, and installation and movement are easy.

Inside the container, various medical equipment, diagnostic equipment, storage equipment, air conditioning system, etc. are installed, and a power supply is also required for the use of these equipment. However, medical equipment is sensitive to the quality of power, and when the quality of power is low, damage or malfunction of the equipment may occur.

Therefore, it is necessary to develop a power supply system that can stably supply power to the inside of the negative pressure container.

Registered Patent No. 10-2161495 (Name: Non-face-to-face positive pressure screening clinic)

An object of the present invention is to provide a negative pressure container power supply system and method that can stably supply power to the inside of a negative pressure container.

A negative pressure container power supply system according to an embodiment of the present invention includes a first power supply module and a power quality analysis module. The first power supply module may supply power into the negative pressure container. The power quality analysis module may extract power information supplied from the first power supply module and determine whether power is supplied to the inside of the container. When the power quality analysis module applies power supply, the first power supply module may supply power to the inside of the container.

In the negative pressure container power supply system according to an embodiment of the present invention, power information may include at least one of voltage, current, and harmonics.

In the negative pressure container power supply system according to an embodiment of the present invention, the power quality analysis module may include a signal input unit, a data processing unit, and a control unit. The signal input unit may receive a power signal from the first power supply module. The data processing unit may process the analog signal input through the signal input unit into voltage data, current data, voltage harmonic data, and current harmonic data. The control unit may determine whether to supply power by comparing the data processed by the data processing unit with a preset value.

In the negative pressure container power supply system according to an embodiment of the present invention, the power quality analysis module may further include a display unit for displaying an abnormal state of supplied power.

The negative pressure container power supply system according to an embodiment of the present invention may further include a second power supply module. When the power quality analysis module determines that the power quality of the first power supply module is unsuitable, the controller may disconnect the first power supply module and control the second power supply module to supply power to the inside of the container. .

In the negative pressure container power supply system according to an embodiment of the present invention, the second power supply module may be a small-capacity energy storage system.

In the negative pressure container power supply system according to an embodiment of the present invention, the second power supply module may be associated with a solar power generation device or a wind power generation device.

In the negative pressure container power supply system according to an embodiment of the present invention, a sensor may be provided in a power supply line connected to each equipment. Each sensor may measure at least one of current or voltage of power supplied to each device.

In the negative pressure container power supply system according to an embodiment of the present invention, the control unit analyzes the power quality from the measurement values received from the sensors, and when it is determined that the power quality is inadequate, it sends a warning or supplies power to the second power supply module. can be converted to

In the negative pressure container power supply system according to an embodiment of the present invention, the control unit calculates the power consumption from the measured values received from the sensors, determines that the power consumption is greater than the preset value, and sends a warning or supplies Power may be switched to the second power supply module.

A negative pressure container power supply method according to an embodiment of the present invention includes the steps of extracting at least one of voltage, current, or harmonic data of power supplied from a first power supply module, and comparing the extracted data with a preset value. , when the at least one extracted voltage, current or harmonic data value is within a predetermined non-conformity range, cutting off the power supply of the first power supply module.

The negative pressure container power supply method according to an embodiment of the present invention may further include emitting a warning sound when at least one extracted voltage, current, or harmonic data value is included in a predetermined inappropriate range.

In the negative pressure container power supply method according to an embodiment of the present invention, when at least one extracted voltage, current, or harmonic data value is included in a predetermined non-conformity range, the control unit supplies power to the container by the second power supply module. A step of controlling to do so may be further included.

In the negative pressure container power supply method according to an embodiment of the present invention, the second power supply module may be associated with a solar power generation device or a wind power generation device.

The negative pressure container power supply method according to an embodiment of the present invention may further include receiving at least one of a current value or a voltage value of power supplied to each equipment from a sensor provided in a power supply line connected to each equipment. there is.

A negative pressure container power supply method according to an embodiment of the present invention calculates the power consumption from the measured values received from the sensors, determines that the power consumption is greater than a preset value, and sends a warning or supplies power. Switching to a second power supply module may be included.

The negative pressure container power supply system and method according to the embodiment of the present invention can stably supply power to the inside of the negative pressure container.

1 is a view showing the structure of an inner space of a movable negative pressure container.
2 is a schematic block diagram of a negative pressure container power supply system according to an embodiment of the present invention.
3 is a schematic block diagram of a negative pressure container power supply system according to another embodiment of the present invention.
4 is a diagram showing a photovoltaic power generation device in a negative pressure container power supply system according to an embodiment of the present invention.

Since the present invention can apply various transformations and have various embodiments, specific embodiments are exemplified and described in detail in the detailed description. However, it should be understood that this is not intended to limit the present invention to specific embodiments, and includes all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In the present invention, terms such as 'include' or 'having' are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it should be noted that in the accompanying drawings, the same components are indicated by the same reference numerals as much as possible. In addition, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, in the accompanying drawings, some components are exaggerated, omitted, or schematically illustrated.

1 is a view showing the structure of an inner space of a movable negative pressure container.

The mobile negative pressure container is manufactured using a container, and is partitioned into areas required for examination and diagnosis by an inner wall. For example, the inner space of the container may be divided into a sample extraction area and a PCR test area.

Inside the negative pressure container, a plurality of equipment for collecting and diagnosing specimens is accommodated. Specifically, various equipment such as a centrifuge for extracting samples, a PCR processing device, a negative pressure generator for maintaining negative pressure inside the container, and a refrigerator or freezer for storing samples may be provided.

Refrigerators and freezers may store the collected samples. When the number of specimens to be diagnosed increases, some specimens may be refrigerated or frozen to prevent damage to the specimens.

In the sample sorting workbench, work of sorting samples from specimens can be performed. Specimen samples contained in cotton swabs, etc. are classified in test tubes, etc., and the information of the test subject is attached.

The extraction bench extracts RNA polymerase genes from sorted samples. In the pretreatment workbench, pretreatment work can be performed so that the extracted RNA polymerase gene can be subjected to PCR treatment.

In the PCR processing unit, PCR processing is performed to amplify the extracted RNA polymerase gene. The freezer may store samples, specimens, and the like that need to be stored during the diagnosis process.

An entrance door for entrance and exit of a medical staff may be formed on one wall of the container. The entrance door may be an automatic door. The air pressure inside the negative pressure container is maintained at a negative pressure so that polluted air inside the negative pressure container does not flow out.

The negative pressure generator maintains the air pressure inside the container at negative pressure. The negative pressure generator adjusts the flow of air so that the amount of air flowing out of the container is greater than the air flowing into the container, thereby making the pressure inside the container lower than the pressure outside the container. At this time, the air inside is filtered and discharged.

A photocatalytic zeolite filter can be applied to the negative pressure generator for filtering the internal air. Contaminated air discharged outside the container is discharged through a photocatalyst zeolite filter.

Specifically, air inside the container may be introduced into the photocatalytic zeolite filter immediately or after passing through the HEPA filter. The photocatalytic zeolite filter may have a structure in which a plurality of photocatalytic filters are arranged in layers. Each photocatalytic filter is spaced apart from each other, a space is formed between the filters, and ultraviolet rays are irradiated into the space so that air can be sufficiently sterilized.

By irradiating the photocatalytic zeolite filter with ultraviolet rays, a photochemical reaction occurs, whereby contaminants can be decomposed or removed. Filters can be replaced periodically.

The negative pressure generator may be located on the side wall or ceiling of the container. The pressure difference between the inside and outside of the container may be 2.5 to 5 Pa.

A power supply device may be provided to supply power to various equipment accommodated inside the negative pressure container. The power supply is external power and supplies the power required inside the container. However, various medical equipment housed inside the container is very sensitive to the quality of power. If unstable power is supplied, it affects the diagnosis result, and the negative pressure inside the container may not be properly maintained.

In order to supply stable power required inside the container, a power supply system optimized for negative pressure containers is required.

Figure 2 is a block diagram schematically showing a negative pressure container power supply system according to an embodiment of the present invention, Figure 3 is a block diagram schematically showing a negative pressure container power supply system according to another embodiment of the present invention, Figure 4 is It is a diagram showing a photovoltaic power generation device in a negative pressure container power supply system according to an embodiment of the present invention.

As shown in FIG. 2 , the negative pressure container power supply system 1000 according to the present invention includes a first power supply module 1110 and a power quality analysis module 1200 . The first power supply module 1110 supplies power into the container 2000 . The first power supply module 1110 may be an external power source.

The power quality analysis module 1200 extracts power information supplied from the first power supply module 1110 and determines whether the first power supply module 1110 supplies power to the inside of the container 2000 . Medical equipment is sensitive to the quality of power, and if the quality of power is poor, damage or malfunction of the equipment may occur. The power quality analysis module 1200 analyzes the quality of supplied power before applying power to the inside of the container 2000 and applies power to the container 2000 when a predetermined condition is satisfied.

To this end, the power quality analysis module 1200 includes a signal input unit 1210, a data processing unit 1220, and a control unit 1230. The signal input unit 1210 receives a power signal from the first power supply module 1110 . The power signal may be a signal for voltage or current.

The data processing unit 1220 converts the analog signal input to the signal input unit 1210 into a digital signal, and applies convolution and Fourier transform to the converted digital signal to obtain voltage data and current data. , voltage harmonic data, current harmonic data, etc. are processed.

The control unit 1230 compares the data processed by the data processing unit 1220 with a preset value. Low incoming voltage or current can damage or malfunction the equipment inside the container. When the voltage or current of the supplied power reaches a certain level, power is applied to the container. If the voltage or current is less than a preset value, since power cannot be stably supplied to the container, the controller 1230 controls the first power supply module 1110 not to supply power to the load accommodated in the container.

On the other hand, if harmonics are detected above a predetermined value, it may lead to damage to the device. Even if voltage and current satisfy predetermined conditions, if voltage harmonics and current harmonics are detected as higher than predetermined values, the control unit 1230 does not supply power to the load accommodated in the container 2000 by the first power supply module 1110. control so as not to In another embodiment, the negative pressure container power supply system 1000 may further include a harmonic reduction filter to reduce voltage harmonics and current harmonics. In another embodiment, the first power supply module 1110 may further include a protection circuit capable of preventing overcurrent, overvoltage, and arc generation.

When the voltage or current does not reach a certain level or the harmonic distortion is severe, the control unit 1230 determines that the power supplied by the first power supply 1110 is unstable, and the first power supply 1110 Cut off the power supply.

The controller 1230 uses at least one of a voltage value, a current value, voltage harmonics, and current harmonics to determine whether power is supplied to the first power supply module 1110, but for accurate determination, the voltage value, current value, Both voltage harmonics and current harmonics data may be used.

In addition, the power quality analysis module 1200 may further include a display unit 1240 so that the user can recognize the state of the first power supply module 1110 . The display unit 1240 may display power quality conditions such as voltage and current. In addition, when it is determined that the power is unstable, a warning sound may be issued to alert the user of the situation.

When the power quality analysis module 1200 determines that the power supplied from the first power supply module 1110 is stable, the control unit 1110 operates the first power supply module 1110 to supply power to the inside of the container 2000. to control

Meanwhile, the negative pressure container power supply system 1000' according to the present invention may further include a second power supply module 1120 as shown in FIG. 3 . The first power supply module 1110 and the second power supply module 1120 may selectively apply power to the inside of the container. The second power supply module 1120 may be a small-capacity energy storage system (ESS).

When the quality of the power supplied by the first power supply module 1110 is determined to be unsuitable for application to the container 2000, the control unit 1230 cuts off the power supply of the first power supply module 1110, and the container ( 2000) may be controlled to receive power from the second power supply module 1120.

Specifically, the control unit 1230 compares at least one data of a voltage value, a current value, voltage harmonics, and current harmonics with a preset value in order to determine whether power is supplied to the first power supply module 1110 . When the voltage or current of the power supplied from the first power supply module 1110 does not reach a certain level, the controller 1230 disconnects the first power supply module 1110, and the second power supply module 1120 ) to supply power.

When the voltage harmonics and the current harmonics of the power supplied from the first power supply module 1110 are detected as higher than a predetermined value, the controller 1230 disconnects the first power supply module 1110, and the second power supply module 1120 switches to supply power.

Meanwhile, when the power quality analysis module 1200 determines that the power supplied from the first power supply module 1110 is stable, the control unit 1110 supplies power to the inside of the container 2000 so that the first power supply module ( 1110) to control.

The control unit 1230 uses at least one of a voltage value, a current value, voltage harmonics, and current harmonics in order to determine whether power is supplied to the first power supply module 1110 or the second power supply module 1120. All data of voltage values, current values, voltage harmonics, and current harmonics may be used for the determination.

As shown in FIG. 4 , a photovoltaic power generation facility 1500 and a wind power generation facility (not shown) may be installed outside the container 2000 . The second power supply module 1120 may store electricity generated from solar power generation or wind power generation in association with solar power generation or wind power generation. The second power supply module 1120 includes a power conversion device (PCS). Even if the quality of the power supplied by the first power supply module 1110 is degraded by the second power supply module 1120 , power can be stably supplied to the inside of the container 2000 .

On the other hand, in the negative pressure container power supply system 1000 according to the present invention, a sensor 1410 may be mounted on a power supply line supplying power to each equipment 1310. Sensor 1410 may be a voltage sensor or a current sensor. The voltage sensor or current sensor may be installed in a contact or non-contact manner on the branched power supply line. Current can be measured through the strength of the magnetic field formed in the power supply line. Equipment 1310 and sensor 1410 may be provided as needed.

The sensor 1410 may monitor the quality of power supplied to each load 1310 in real time. The control unit 1230 determines the quality of the power supplied to the load 1310 or calculates the power consumption of each load 1310 based on the measured voltage or current information of the power introduced into each load 1310. .

The controller 1230 determines that the first power supply module has a problem when the calculated power quality data is smaller than the preset value. In addition, the controller 1230 determines excessive use when the power consumption of each load 1310 is greater than a preset value. In this case, the controller 1230 may send a warning to the user to recognize the current situation. In addition, it is determined that the power of the first power supply module 1110 is unstable, and the power supply source may be controlled to switch to the second power supply module 1120 . An abnormal state or a load 1310 having an abnormality may be displayed on the display unit 1240 .

The abnormal state of the power supply module or the abnormal state of the load may be stored as fault data. The stored data can be used to analyze the cause of the accident.

In order to implement the negative pressure container power supply method according to the present invention, first, at least one of voltage, current, or harmonic data of the power supplied from the first power supply module is extracted. The first power supply module is an external power source and supplies power to the inside of the container.

The power quality analysis module includes a signal input unit, a data processing unit, and a control unit. The signal input unit receives a power signal from the first power supply module. The power signal may be a signal for voltage or current. The data processor converts the analog signal input through the signal input unit into a digital signal and extracts voltage data, current data, voltage harmonic data, current harmonic data, and the like.

The extracted data is compared with a preset value. Low incoming voltage or current can damage or malfunction the equipment inside the container. If the voltage or current is less than a preset value, it is determined that power cannot be stably supplied to the container. When voltage harmonics and current harmonics are detected as higher than a predetermined value, it is also determined that power cannot be stably supplied to the container.

The control unit categorizes the extracted data into a non-conforming/conforming state according to a comparison result with a preset value.

When at least one extracted voltage, current, or harmonic data value is included in a predetermined non-conformance range, the control unit cuts off the power supply of the first power supply module so that the first power supply module does not supply power to the load accommodated in the container. do. The control unit may cut off the power supply of the first power supply module and emit a warning sound.

When the extracted voltage, current, or harmonic data values are all within a predetermined suitable range, the control unit controls the first power supply module to supply power to the container.

In the negative pressure container power supply method according to the present invention, when at least one extracted voltage, current, or harmonic data value is included in a predetermined non-conformity range, the control unit may control the second power supply module to supply power to the inside of the container. there is.

The second power supply module may be a small-capacity energy storage system (ESS). The second power supply module includes a power conversion unit (PCS). Even if the quality of the power supplied by the first power supply module is degraded, power can be stably supplied to the inside of the container by the second power supply module. The second power supply module may be connected to a photovoltaic power generation device or a wind power generation device to store electricity generated from photovoltaic power generation or wind power generation.

The negative pressure container power supply method according to the present invention may receive at least one of a current value or a voltage value of power supplied to each equipment from a sensor provided in a power supply line connected to each equipment. The sensor may be a voltage sensor or a current sensor. The voltage sensor or current sensor may be installed in a contact or non-contact manner on the branched power supply line. Current can be measured through the strength of the magnetic field formed in the power supply line.

The quality of power drawn into each load can be monitored in real time by the sensor. The control unit determines the quality of power supplied to the load or calculates the power consumption of each load based on the measured voltage or current information of the power introduced into each load.

If the calculated power quality data is smaller than the preset value, the control unit determines that there is an abnormality in the first power supply module. In addition, the control unit determines excessive use when the power consumption of each load is greater than a preset value. In this case, the control unit may send a warning to the user to recognize the current situation. In addition, it is determined that the power of the first power supply module is unstable, and the power supply source may be controlled to switch to the second power supply module. The abnormal state or the load in which the abnormality occurred can be displayed on the display unit.

The abnormal state of the power supply module or the abnormal state of the load may be stored as fault data. The stored data can be used to analyze the cause of the accident.

Although one embodiment of the present invention has been described above, those skilled in the art can add, change, delete, or add components within the scope not departing from the spirit of the present invention described in the claims. The present invention can be variously modified and changed by the like, and this will also be said to be included within the scope of the present invention.

1000, 1000' : Negative pressure container power supply system
1110: first power supply module 1120: second power supply module
1200: power quality analysis module 1210: signal input unit
1220: data processing unit 1230: control unit
1240: display unit 1310: equipment
1410: sensor 1500: solar generator
2000: Negative pressure container

Claims (16)

A system for supplying power to a negative pressure container,
a first power supply module that is an external power source;
a power quality analysis module that extracts information on power supplied from the first power supply module and determines whether power is supplied from the first power supply module to the inside of the container; and
It is a small-capacity energy storage system and includes a second power supply module having a power conversion device,
The power quality analysis module,
a signal input unit receiving a power signal from the first power supply module;
A data processing unit for processing the analog signal input to the signal input unit into voltage data, current data, voltage harmonic data, and current harmonic data; and
A controller comparing the data processed by the data processing unit with a preset value to determine whether or not to supply power to the first power supply module;
When the power quality analysis module applies power supply from the first power supply module, the controller controls the first power supply module to supply power to the inside of the container;
When the power quality analysis module determines that the power quality of the first power supply module is unsuitable, the controller cuts off the connection of the first power supply module, and the second power supply module supplies power to the inside of the container. A negative pressure container power supply system, characterized in that for controlling. According to claim 1,
The power information of the negative pressure container power supply system, characterized in that it includes at least one of voltage, current or harmonics. delete According to claim 1,
The power quality analysis module is a negative pressure container power supply system, characterized in that further comprising a display unit for displaying an abnormal state of the supplied power. delete delete According to claim 1,
The second power supply module is a negative pressure container power supply system, characterized in that associated with a solar power generation device or a wind power generation device. According to claim 1,
A sensor is provided in the power supply line connected to each equipment,
Each of the sensors is a negative pressure container power supply system, characterized in that for measuring at least one of the current or voltage of the power supplied to each equipment. According to claim 8,
Wherein the control unit analyzes the power quality from the measured values received from the sensors and when it is determined that the power quality is inadequate, a negative pressure container power supply system characterized in that for sending a warning or switching the supply power to the second power supply module. . According to claim 8,
The control unit calculates the power consumption from the measured values received from the sensors, and if the power consumption is greater than the preset value, determines that it is overused, and sends a warning or switches the supply power to the second power supply module. Negative pressure container power supply system. A method of supplying power to a negative pressure container, comprising:
extracting at least one of voltage, current, or harmonic data of power supplied from a first power supply module;
comparing the extracted data with a preset value;
if at least one of the extracted voltage, current, or harmonic data values is within a predetermined non-conformity range, cutting off power supply of a first power supply module;
Controlling the second power supply module to supply power to the inside of the container at the same time as power supply to the first power supply module is cut off; and
Including, when at least one of the extracted voltage, current or harmonic data values is included in a predetermined non-conformance range, emitting a warning sound;
The first power supply module is an external power source,
The second power supply module is a small-capacity energy storage system, has a power conversion device, and is associated with a solar power generation device or a wind power generation device, characterized in that the negative pressure container power supply method. delete delete delete According to claim 11,
Receiving at least one of a current value or a voltage value of power supplied to each equipment from a sensor provided in a power supply line connected to each equipment; Negative pressure container power supply method further comprising. According to claim 15,
Calculating the power consumption from the measured values received from the sensors, determining that the power consumption is greater than a preset value, and sending a warning or switching the supply power to a second power supply module; including A negative pressure container power supply method, characterized in that.

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