KR102462231B1 - System and method for controlling the temperature of a chamber - Google Patents

Abstract

The present disclosure relates to a chamber control system for controlling a thermal chamber used for thermal environment testing of satellite components. According to the present disclosure, a chamber control system for controlling a thermal chamber receives a user's biosignal from a wearable device, identifies whether a problem has occurred to the user based on the biosignal, and provides the user with A human-machine interface that transmits a danger signal indicating occurrence of the problem when it is identified that a problem has occurred; a thermal chamber control unit that transmits an emergency command signal in response to the danger signal; and a thermal chamber in which the internal temperature of the chamber is changed to room temperature in response.

Description

SYSTEM AND METHOD FOR CONTROLLING THE TEMPERATURE OF A CHAMBER

The present disclosure relates generally to a chamber control system, and more particularly, to a system and method for controlling the temperature of a thermal chamber used in a thermal environment test of a satellite component based on a biosignal.

The satellite components operate for a long period of time in a space environment in a cryogenic temperature and high vacuum state, and malfunction of major components of the satellite may occur due to the cryogenic or high vacuum space environment. In order to prevent malfunction of satellite components in advance, a space environment test for space equipment is required, and for this space environment test, a thermal vacuum chamber apparatus may be used as equipment for simulating the space environment. .

A biosignal is a minute electrical signal generated between cells of the human body, and is used in the medical field to determine a patient's condition and EMG status. As a device for measuring such a bio-signal, a wearable type bio-measuring device is attached to a user, measures bio-information such as heart rate, blood pressure, and body temperature, and transmits the measured bio-information to the user's own smart phone. It may be configured to perform Bluetooth pairing so that the user's smart phone and the wearable type biometric device are wirelessly connected to transmit information. The wearable device detects an electrical signal from a user, and extracts a biosignal by processing the detected signal.

According to the conventional thermal vacuum chamber or thermal cycle chamber, since the thermal environment test of satellite components differs depending on the part's requirements, calorific value, heat capacity, etc., the thermal vacuum chamber or thermal cycle chamber used for the test is must be manually controlled according to the command of During a thermal environment test using a thermal chamber, if there is a problem with the health of the tester such as acute shock or myocardial infarction, the life of the tester may be at risk, and the satellite parts may be subjected to extreme temperatures such as cryogenic or high temperature due to the out-of-control of the chamber. Exposure to the environment may cause malfunction. Therefore, in order to secure the safety of the user and the safety of the satellite components, it is necessary to develop a technology to provide a test environment linked to the user's bio-signals.

Based on the above discussion, the present disclosure relates to a chamber control system, and more specifically, to a system and method for controlling the temperature of a thermal chamber used for a thermal environment test of a satellite component based on a biological signal. to provide.

In addition, the present disclosure provides a system and method for securing the safety of a tester by checking a biosignal from a wearable device when a health problem of the tester occurs during a space environment test.

According to various embodiments of the present disclosure, a chamber control system for controlling a thermal chamber used for a thermal environment test of a satellite component receives a user's biosignal from a wearable device, and based on the biosignal, the user a human-machine interface that identifies whether a problem has occurred to the user, and when it is identified that a problem has occurred to the user, a human-machine interface that transmits a danger signal instructing the occurrence of the problem; and an emergency command signal in response to the danger signal It includes a thermal chamber control unit that transmits, and a thermal chamber in which the internal temperature of the chamber is changed to room temperature in response to the emergency command signal.

According to another embodiment, when the human-machine interface identifies that a problem has occurred to the user, the chamber control system transmits the danger signal to the thermal chamber control unit and the safety management counterpart, respectively.

According to another embodiment, the thermal chamber control unit of the chamber control system transmits a report signal to at least one of the safety management counterpart and the human-machine interface, and the report signal indicates that the emergency command signal is generated. and a signal indicating that the temperature of the thermal chamber is changed based on the emergency command signal.

According to another embodiment, the bio-signal of the chamber control system includes a signal indicative of at least one of the user's heart rate, body temperature, number of respirations, and blood oxygen saturation, and the human-machine interface The current value is compared to a threshold value to identify whether a problem has occurred for the user.

According to another exemplary embodiment, the threshold value of the chamber control system is variably determined based on statistical values of biosignal values measured multiple times by the wearable device.

According to another embodiment, when the current time is included in the preset night time, the human-machine interface of the chamber control system changes the threshold value to the night mode threshold value.

Various respective aspects and features of the invention are defined in the appended claims. Combinations of features of the dependent claims may be combined with features of the independent claims as appropriate, not just expressly set forth in the claims.

In addition, one or more features selected in any one embodiment described in this disclosure may be combined with one or more features selected in any other embodiment described in this disclosure, and alternatives to these features a combination of at least partially alleviates one or more technical problems discussed in the present disclosure, or at least partially alleviates technical problems that can be discerned by a person skilled in the art from the present disclosure, and furthermore features of embodiments ( The combination is possible, provided that a specific combination or permutation so formed of the embodiment features is not understood by a person skilled in the art as incompatible.

In any described example implementation, two or more physically separate components may alternatively be integrated into a single component if their integration is possible, and the single component so formed If the same function is performed by , the integration is possible. Conversely, a single component of any embodiment described in the present disclosure may alternatively be implemented with two or more separate components that achieve the same function, where appropriate.

It is an object of certain embodiments of the present invention to solve, mitigate, or eliminate, at least in part, at least one of the problems and/or disadvantages associated with the prior art. Certain embodiments aim to provide at least one of the advantages described below.

The method and system according to various embodiments of the present disclosure secure the safety of the user and secure the safety of the user by controlling the thermal chamber based on the biosignal of the user performing the test when the thermal environment test of the satellite component is performed Prevents parts from being exposed to extreme environments.

Effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present disclosure belongs from the description below. will be.

1 illustrates a chamber control system according to various embodiments of the present disclosure;
2 is a flowchart illustrating an operation process of the chamber control system components according to various embodiments of the present disclosure.
3 is a flowchart illustrating a method of operating an interface in a wireless communication system according to various embodiments of the present disclosure;
4 is a flowchart illustrating a method of operating a chamber control system according to various embodiments of the present disclosure.

Terms used in the present disclosure are used only to describe specific embodiments, and may not be intended to limit the scope of other embodiments. The singular expression may include the plural expression unless the context clearly dictates otherwise. Terms used herein, including technical or scientific terms, may have the same meanings as commonly understood by one of ordinary skill in the art described in the present disclosure. Among the terms used in the present disclosure, terms defined in a general dictionary may be interpreted with the same or similar meaning as the meaning in the context of the related art, and unless explicitly defined in the present disclosure, ideal or excessively formal meanings is not interpreted as In some cases, even terms defined in the present disclosure cannot be construed to exclude embodiments of the present disclosure.

In various embodiments of the present disclosure described below, a hardware access method will be described as an example. However, since various embodiments of the present disclosure include technology using both hardware and software, various embodiments of the present disclosure do not exclude a software-based approach.

The present disclosure below relates to systems and methods for controlling the temperature of a thermal chamber in a chamber control system.

Specifically, the present disclosure describes a technique for controlling a temperature of a thermal chamber used in a thermal environment test of a satellite component based on a biosignal in a chamber control system.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art to which the present disclosure pertains can easily implement it. However, since the technical spirit of the present disclosure may be modified and implemented in various forms, it is not limited to the embodiments described herein. In the description of the embodiments disclosed in the present specification, when it is determined that a detailed description of a related known technology may obscure the gist of the present disclosure, a detailed description of the known technology will be omitted. The same or similar components are given the same reference numerals, and overlapping descriptions thereof will be omitted.

In the present specification, when an element is described as being "connected" with another element, it includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another element interposed therebetween. When an element "includes" another element, it means that another element may be further included without excluding another element in addition to other elements unless otherwise stated.

Some embodiments may be described in terms of functional block configurations and various processing steps. Some or all of these functional blocks may be implemented in various numbers of hardware and/or software configurations that perform specific functions. For example, the functional blocks of the present disclosure may be implemented by one or more microprocessors, or by circuit configurations for a given function. The functional blocks of the present disclosure may be implemented in various programming or scripting languages. The functional blocks of the present disclosure may be implemented as an algorithm running on one or more processors. Functions performed by a functional block of the present disclosure may be performed by a plurality of functional blocks, or functions performed by a plurality of functional blocks in the present disclosure may be performed by one functional block. Also, the present disclosure may employ prior art for electronic configuration, signal processing, and/or data processing, and the like.

In addition, in the present disclosure, in order to determine whether a specific condition is satisfied or fulfilled, an expression of more than or less than is used, but this is only a description to express an example, and more or less description is excluded. not to do Conditions described as 'more than' may be replaced with 'more than', conditions described as 'less than', and conditions described as 'more than and less than' may be replaced with 'more than and less than'.

1 illustrates a chamber control system 100 according to various embodiments of the present disclosure. Referring to FIG. 1 , the chamber control system includes a wearable device 101 , a human-machine interface (HMI) 103 , a safety management counterpart 105 , a thermal chamber controller 107 , and a thermal chamber 109 .

The wearable device 101 indicates a device wearable by the user, and performs a function of measuring a biosignal and transmitting the measured signal to the management unit. The wearable device 101 may include a measurement unit for measuring a biosignal, a memory for storing measurement information, a control unit for processing measurement information, and a communication unit for transmitting measurement information or processed information to the management unit. According to an embodiment of the present disclosure, the wearable device 101 has a function of periodically measuring a biosignal of a user wearing the wearable device, storing the measured data in real time or for a predetermined time, and transmitting the accumulated data to the interface can be performed.

The human-machine interface 103 performs a function of providing mutual conversion between data used for machine control and analog control used for humans. The human-machine interface 103 includes an operation unit that receives driving information or data communication information from a user or the outside to simulate and calculate the operation of the human-machine interface, and a communication unit that converts and transmits a protocol that can communicate with a programmable logic controller (PLC) may include According to an embodiment of the present disclosure, the human-machine interface 103 receives the biosignal received from the wearable device 101 . The human machine-interface 103 may identify whether a problem has occurred to the user by comparing it with a preset threshold value based on at least one of the user's heart rate, body temperature, respiration frequency, and blood oxygen saturation. According to an embodiment of the present disclosure, when it is identified that a problem has occurred to the user, the human-machine interface 103 may transmit a signal indicating that a problem has occurred to the user to the PLC to control the thermal chamber. .

The safety management response unit 105 performs a function to secure the safety of a user performing a thermal environment test. According to an embodiment of the present disclosure, the safety management response unit 105 includes a situation room that integrally manages the situation of the laboratory, a safety center that performs emergency rescue work, and 119 .

The thermal chamber control unit 107 performs a function of controlling the environment of the thermal chamber. According to an embodiment of the present disclosure, the thermal chamber control unit includes a programmable logic controller (PLC). PLC inputs each operation and sequence to be performed by equipment and facilities, treatment in case of failure, etc. According to an embodiment of the present disclosure, when receiving a danger signal from the human machine interface, the thermal chamber controller 107 may transmit an emergency command signal for controlling the temperature of the thermal chamber to the thermal chamber.

The thermal chamber 109 serves to provide a space corresponding to the thermal environment of the satellite component. The thermal chamber 109 indicates equipment for simulating the space environment for space environment testing of satellite components. According to an embodiment of the present disclosure, the thermal chamber 109 includes at least one of a thermal vacuum chamber and a thermal cycle chamber.

2 is a flowchart 200 illustrating an operation process of the chamber control system components according to various embodiments of the present disclosure. FIG. 2 illustrates operation processes of the wearable device 101 , the human-machine interface 103 , the safety management response unit 105 , the thermal chamber control unit 107 , and the thermal chamber 109 of FIG. 1 .

Referring to FIG. 2 , in step 201 , the wearable device transmits a biosignal to the human-machine interface 103 . According to an embodiment of the present disclosure, the biosignal indicates the user's biometric information measured by the wearable device from the user. The biosignal includes a signal indicating information about at least one of a user's heart rate, body temperature, respiration frequency, and blood oxygen saturation. 2 illustrates that the wearable device transmits the biosignal one time, according to an embodiment of the present disclosure, the wearable device may transmit the biosignal multiple times to the human-machine interface.

In step 203, the human-machine interface 103 detects that a problem has occurred to the user. The human-machine interface 103 detects that a problem has occurred in the user based on the biosignal received from the wearable device. According to an embodiment of the present disclosure, when the human-machine interface 103 identifies that the current value of the biosignal determined based on the biosignal received from the wearable device is greater than or equal to the threshold value, it is determined that a problem has occurred to the user. It is identified, and when it is identified that the current value of the biosignal is smaller than the threshold value, it is identified that no problem has occurred to the user. According to an embodiment of the present disclosure, the threshold value may be variably determined based on statistical values of biosignal values measured a plurality of times by the wearable device. The statistical value includes at least one of an average value, a deviation value, and a variance value of the plurality of biosignals. According to another embodiment of the present disclosure, the threshold value may be preset according to a user's setting. The human-machine interface may set a different threshold value according to the operating time of the device in consideration of the user's work environment. According to an embodiment of the present disclosure, when the current time is included in the preset night time, the human-machine interface 103 may change the threshold value to be small.

In step 205 , the human machine interface 103 may transmit a hazard signal to the safety management counterpart and the thermal chamber control unit. According to an embodiment of the present disclosure, the human-machine interface 103 may identify that a problem has occurred to the user and transmit the danger signals 205 and 207 to the thermal chamber control unit and the safety management counterpart, respectively. According to another embodiment of the present disclosure, according to an embodiment of the present disclosure, the human-machine interface 103 may identify that a problem has occurred to the user and transmit a danger signal 207 to the thermal chamber control unit.

In step 209, the thermal chamber control 107 generates an emergency command signal. According to an embodiment of the present disclosure, the thermal chamber control unit 107 generates an emergency command signal in response to a danger signal from the human-machine interface. The thermal chamber control unit 107 receives the danger signal from the human-machine interface 103 and generates an emergency command signal. The emergency command signal is a signal for controlling the temperature of the thermal chamber, and includes a signal for changing the temperature to room temperature in order to secure the safety of the user.

In step 211 , the thermal chamber control unit 107 transmits an emergency command signal to the thermal chamber, and the temperature inside the thermal chamber is changed to room temperature in response to the emergency command signal. After transmitting the emergency command signal to the thermal chamber, the thermal chamber control unit 107 may transmit a report signal to at least one of the safety management response unit and the human-machine interface. According to an embodiment of the present disclosure, the thermal chamber control unit 107 may adjust the temperature of the thermal chamber using the emergency command signal and transmit a report signal to the human-machine interface 103 . The report signal may include at least one of a signal indicating that the emergency command signal is generated and a signal indicating that the temperature of the thermal chamber is adjusted according to the emergency command signal.

3 is a flowchart 300 illustrating a method of operating an interface in a wireless communication system according to various embodiments of the present disclosure. FIG. 3 illustrates a method of operation of the human-machine interface 103 of FIG. 1 .

Referring to FIG. 3 , in step 301 , the human machine interface 103 receives a user's biosignal from the wearable device. The bio-signal includes a signal including the user's bio-information measured by the wearable device from the user. According to an embodiment of the present disclosure, the human-machine interface 103 includes a signal indicating information about at least one of a user's heart rate, body temperature, respiration frequency, and blood oxygen saturation. According to an embodiment of the present disclosure, the human-machine interface 103 may receive the biosignal a plurality of times.

In step 303, the human machine interface 103 identifies whether the biosignal value is equal to or greater than a threshold value. According to an embodiment of the present disclosure, when the human-machine interface 103 identifies that the current value of the bio-signal determined based on the bio-signal received from the wearable device is greater than or equal to the threshold value, step 305 is performed. Proceed and identify the user as having a problem. When the human-machine interface 103 identifies that the current value of the biosignal determined based on the biosignal received from the wearable device is smaller than the threshold value, the human-machine interface 103 proceeds to step 301 to receive the user's biosignal from the wearable device. do.

According to an embodiment of the present disclosure, the threshold value may be variably determined based on statistical values of biosignal values measured a plurality of times by the wearable device. The statistical value includes at least one of an average value, a deviation value, and a variance value of the plurality of biosignals. According to another embodiment of the present disclosure, the threshold value may be preset according to a user's setting.

The human-machine interface may set a different threshold value according to the operating time of the device in consideration of the user's work environment. According to an embodiment of the present disclosure, when the current time is included in the preset night time, by changing the threshold value for identification in step 303 small, it is possible to control to provide a high level of safety to the user.

In step 305, the human-machine interface 103 identifies that a problem has occurred to the user and proceeds to step 307 to transmit a danger signal indicating occurrence of the problem. According to an embodiment of the present disclosure, the human-machine interface 103 may use the method of step 303 to identify that a problem has occurred to the user and transmit a danger signal to the thermal chamber control unit 107 . The human-machine interface 103 may transmit a hazard signal to each of the thermal chamber control unit 107 and the safety management counterpart 105 .

In step 309, the human machine interface 103 receives a report signal from the thermal chamber control. According to an embodiment of the present disclosure, the thermal chamber control unit 107 may adjust the temperature of the thermal chamber using the emergency command signal and transmit a report signal to the human-machine interface 103 . The report signal may include at least one of a signal indicating that the emergency command signal is generated and a signal indicating that the temperature of the thermal chamber is adjusted according to the emergency command signal. The operation process of the human-machine interface according to step 309 may be omitted according to a user's setting.

4 illustrates a flowchart 400 of a method of operating a chamber control system according to various embodiments of the present disclosure.

Referring to FIG. 4 , in step 401 , the human-machine interface 103 receives a user's biosignal from the wearable device. The bio-signal indicates a signal including the user's bio-information, and according to an embodiment of the present disclosure, the bio-signal may be transmitted to the human-machine interface a plurality of times.

In step 403, the human-machine interface 103 detects that a problem has occurred to the user and transmits a danger signal indicating occurrence of the problem. According to an embodiment of the present disclosure, the human-machine interface 103 identifies whether a problem has occurred to the user based on the biosignal, and the method of identifying whether a problem has occurred to the user based on the biosignal is It may be performed using the method of step 303 of FIG. 3 . The human-machine interface 103 may identify that a problem has occurred to the user by comparing the current bio-signal value with a threshold value. According to an embodiment of the present disclosure, the human-machine interface 105 transmits a danger signal indicating occurrence of a problem when it is identified that a problem has occurred to the user. According to an embodiment of the present disclosure, the human-machine interface 103 may identify that a problem has occurred to the user and transmit a danger signal to the thermal chamber control unit 107 . According to another embodiment of the present disclosure, the human-machine interface 103 may transmit a danger signal to each of the thermal chamber control unit 107 and the safety management counterpart 105 .

In step 405 , the thermal chamber control unit 107 transmits an emergency command signal in response to the danger signal. According to an embodiment of the present disclosure, the thermal chamber control unit 107 receives a danger signal from the human-machine interface 103 and generates an emergency situation command signal. The emergency command signal is a signal for controlling the temperature of the thermal chamber, and includes a signal for changing the temperature to room temperature in order to secure the safety of the user.

In step 407, the temperature inside the thermal chamber is changed to room temperature in response to the emergency command signal. According to an embodiment of the present disclosure, the thermal chamber 109 receives an emergency command signal from the thermal chamber control unit 107 . The thermal chamber 109 is adjusted so that the temperature inside it becomes room temperature based on the emergency situation command signal.

Methods according to the embodiments described in the claims or specifications of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software.

When implemented in software, a computer-readable storage medium storing one or more programs (software modules) may be provided. One or more programs stored in the computer-readable storage medium are configured to be executable by one or more processors in an electronic device (device). One or more programs include instructions for causing an electronic device to execute methods according to embodiments described in a claim or specification of the present disclosure.

Such programs (software modules, software) include random access memory, non-volatile memory including flash memory, read only memory (ROM), electrically erasable programmable ROM (electrically erasable programmable read only memory, EEPROM), magnetic disc storage device, compact disc-ROM (CD-ROM), digital versatile discs (DVDs), or other It may be stored in an optical storage device or a magnetic cassette. Alternatively, it may be stored in a memory composed of a combination of some or all thereof. In addition, each configuration memory may be included in plurality.

In addition, the program is transmitted through a communication network consisting of a communication network such as the Internet, an intranet, a local area network (LAN), a wide area network (WAN), or a storage area network (SAN), or a combination thereof. It may be stored on an attachable storage device that can be accessed. Such a storage device may be connected to a device implementing an embodiment of the present disclosure through an external port. In addition, a separate storage device on the communication network may be connected to the device implementing the embodiment of the present disclosure.

In the specific embodiments of the present disclosure described above, components included in the disclosure are expressed in the singular or plural according to the specific embodiments presented. However, the singular or plural expression is appropriately selected for the context presented for convenience of description, and the present disclosure is not limited to the singular or plural component, and even if the component is expressed in plural, it is composed of a singular or singular. Even an expressed component may be composed of a plurality of components.

Meanwhile, although specific embodiments have been described in the detailed description of the present disclosure, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

Claims (6)

A chamber control system for controlling a thermal chamber used for a thermal environment test of a satellite component, the chamber control system comprising:
Risk of receiving a user's biosignal from a wearable device, identifying whether a problem has occurred to the user based on the biosignal, and instructing the occurrence of the problem when it is identified that a problem has occurred in the user a human-machine interface for transmitting a signal;
a thermal chamber control unit configured to generate an emergency command signal in response to the danger signal and transmit the emergency command signal;
In response to the emergency command signal, comprising a thermal chamber for changing the internal temperature of the chamber to room temperature,
The human-machine interface receives bio-signals from the wearable device a plurality of times, determines a threshold value based on statistical values of the bio-signals, and compares the bio-signals with the threshold value to give the user a problem A chamber control system that identifies whether or not it has occurred.
The method according to claim 1,
When the human-machine interface identifies that a problem has occurred to the user, the chamber control system transmits the danger signal to the thermal chamber control unit and the safety management response unit, respectively.
3. The method according to claim 2,
the thermal chamber control unit sends a report signal to at least one of the safety management counterpart and the human-machine interface;
The report signal includes at least one of a signal indicating that the emergency command signal is generated and a signal indicating that the temperature of the thermal chamber is changed based on the emergency command signal.
The method according to claim 1,
The statistical value includes at least one of an average value, a deviation value, and a variance value for biometric information extracted from each of the biosignals,
The biometric information includes at least one of a heart rate, body temperature, number of respirations, and oxygen saturation of the user.
5. The method according to claim 4,
The human-machine interface is
If the value of the biometric information is greater than or equal to the threshold value, it is identified that a problem has occurred to the user,
When the value of the biometric information is less than the threshold value, the chamber control system identifies that a problem has not occurred to the user.
5. The method according to claim 4,
The human-machine interface is configured to change the threshold value to a night mode threshold value when the current time is included in a preset night time.

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