KR102409680B1 - Safety system for workers in dangerous working place - Google Patents

Abstract

According to the present invention, there is provided a bio-signal information unit for obtaining and providing the bio-signal information of the worker; an image information unit for providing image information by photographing the dangerous work space and the work activities of the worker; an environmental information unit that obtains and provides environmental information of the hazardous work space; a personal identification information generating unit for generating personal identification information capable of identifying an individual for each worker; a worker location information unit providing worker location information by checking the location information of the worker; and processing and using at least one of the bio-signal information, the image information, the environmental information, the personal identification information, and the worker location information, determining the risk of the operator, and managing and supervising the operator's risk A system for the safety of workers working in a hazardous work space is disclosed, including; a central control unit that provides a central control function.

Description

Safety System for Workers in Hazardous Workspaces

The present invention relates to a worker safety system in a hazardous workspace, and more specifically, to more accurately determine the risk of an operator working in a hazardous workspace, determine worker location information more accurately, and safely determine an evacuation route for workers It relates to a worker safety system in a hazardous work space, which is capable of inducing and additionally securing time for rescue and response of workers at the same time.

Fire and safety accidents are always easily accessible through media or news reports. When a safety accident occurs, companies or the government come up with comprehensive safety measures, but it is easily forgotten, and the sad reality is that the media and the world get attention again when another accident occurs.

In this regard, Patent Document 1. According to Korean Patent No. 10-1569700 (registration on November 11, 2015, title of invention: A METHOD FOR FILTRATION OF HARMFUL GAS EFFLUENTS FROM A NUCLEAR POWER PLANT), "From a nuclear power plant A method for filtering a hazardous gas effluent of filtering harmful particularly radioactive components from the gas effluent by means of which the membrane separation is achieved by sifting, sorption and/or diffusion; and - discharging the treated gas effluent to the atmosphere."

However, in Patent Document 1 above, as a technology that paid attention to how to filter the leaked harmful gas, like the present applicant, the risk of the worker working in the hazardous work space is more accurately determined, and the worker location information is more There is no problem with the worker safety system in the hazardous work space, which can accurately judge and safely guide the worker's evacuation route, and at the same time secure additional time for worker rescue and response.

In addition, Patent Document 2. According to Korean Patent No. 10-1882875 (registered on July 23, 2018, title of invention: Apparatus and method for sensing harmful gas for vehicle), "Higher than the breathing position of a user in a vehicle Detecting harmful gas using a first sensor installed at a position, detecting harmful gas using a second sensor installed at a position lower than the breathing position of a user in the vehicle, detected using the first sensor Determining the harmful gas contamination level in the vehicle based on the harmful gas and the harmful gas detected using the second sensor A method for detecting harmful gas for a vehicle, including providing information, is disclosed.

However, the above patent document 2 is a personal space such as a vehicle, and it is a technology that makes it easy to mount a related sensor in the vehicle. There is no disclosure of a worker safety system in a hazardous work space that can more accurately judge information, safely guide workers' evacuation routes, and additionally secure time for worker rescue and response.

Korean Patent No. 10-1569700 (Registered on November 11, 2015, title of invention: A METHOD FOR FILTRATION OF HARMFUL GAS EFFLUENTS FROM A NUCLEAR POWER PLANT) Korean Patent No. 10-1882875 (registered on July 23, 2018, title of invention: Apparatus and method for sensing harmful gas for vehicle)

The present invention was created to solve the above problems, and an object of the present invention is to more accurately determine the risk of a worker working in a hazardous work space, determine the worker location information more accurately, and determine the evacuation route of the worker. It is to provide a safety system for workers in a hazardous work space, which can lead safely and additionally secure time for rescue and response of workers.

In accordance with the present invention for achieving the above object, there is provided a safety system for workers in a hazardous work space, comprising: a biosignal information unit for obtaining and providing biosignal information of the worker; an image information unit for providing image information by photographing the dangerous work space and the work activities of the worker; an environmental information unit that obtains and provides environmental information of the hazardous work space; a personal identification information generating unit for generating personal identification information capable of identifying an individual for each worker; a worker location information unit providing worker location information by checking the location information of the worker; and processing and using at least one of the bio-signal information, the image information, the environmental information, the personal identification information, and the worker location information, determining the risk of the operator, and managing and supervising the operator's risk It includes; a central control unit that provides a central control function.

In addition, the distance between any one of the wearable electronic device worn by the worker and the safety helmet, gloves, face shield, and safety boots worn by the worker is greater than or equal to a predetermined range from a preset distance. When the close state is maintained for more than a predetermined time, it can be determined that the operator is in a dangerous state.

Or on the basis of the temporal correlation and reaction correlation between the sound data measured in the dangerous work space generated according to an alarm or dangerous situation and the bioinformation signal of the operator responding to the sound data, the operator is dangerous status can be considered.

At this time, the worker's personal identification information and the worker location information are transmitted to the central control unit using LoRa communication, and the worker's personal identification information is periodically retrieved by calling the location information of the smartphone carried by the worker. transmits to the central control unit using the LoRa communication, and preliminarily transmits the location information of the smartphone carried by the worker to the central control unit, and when it is determined that the worker is in a dangerous state, the dangerous workspace It is also possible to reconfirm that the operator is in a dangerous state by detecting the heart rate or respiration rate of the operator with the radar provided therein.

In addition, the central control unit, including the dangerous workspace map that displays the dangerous workspace to be easily recognized visually, the worker location information identified according to the personal identification information, the worker location information for each hour of the worker, The movement path of the worker, the risk index of the worker, and the change of the risk index of the worker over time are displayed on the dangerous workspace map, and the hazardous workspace is divided by a predetermined area, but the hazardous work by the zone The risk index for each zone of the space and the transition of the risk index for each zone over time are displayed on the hazardous workspace map, and the zone partitioned in the hazardous workspace is, as well as the inside of the enclosed space in the hazardous workspace. And it is preferable to include all of the outside.

In addition, when it is determined that the hazardous work space is dangerous, an escape of the worker is induced based on the risk index for each zone, and based on the risk index for each zone, a zone having a risk index for each zone below a specific value When a path is created based on and it is determined that the risk index for each zone outside of the enclosed space is more dangerous than the risk index for each zone inside the enclosed space, the operator is guided to stay inside the enclosed space it is possible

In addition, when a plurality of partition walls exist in the dangerous workspace, or a plurality of enclosed spaces, or the dangerous workspace is expanded, the biosignal information, the image information, the environmental information, the personal identification information, and the A relay unit for transmitting at least one or more of the worker location information to the central control unit may be integrated with at least one of the biosignal information unit, the image information unit, the environment information unit, the personal identification information unit, and the worker location information unit. do.

In addition, when it is determined that the operator is in a dangerous state or it is reconfirmed that the operator is in a dangerous state, in order to additionally secure time for the rescue and response of the operator, the oxygen concentration by operating a compressed oxygen pump in the dangerous workspace It is preferable to further include an emergency rescue and response unit that raises the.

Here, the environment information unit, through any one or more of the wearable electronic device, safety helmet, gloves, face shield, and safety boots worn by the worker, obtains and provides first environmental information of the hazardous workspace Ministry of Environmental Information; a second environment information unit for obtaining and providing second environment information of the hazardous work space from equipment disposed or installed in the hazardous work space; and a third environment information unit that obtains and provides third environment information of the hazardous work space in a manner of branching and sensing the suction path in the intake/exhaust fan or duct structure of the hazardous work space.

Here, the bio-signal information unit obtains and provides the first bio-signal information of the worker through any one or more of a wearable electronic device, a safety helmet, gloves, a face shield, and safety boots worn by the worker. biosignal information unit; a second biosignal information unit configured to obtain and provide second biosignal information of the operator from a radar sensor located in equipment disposed or installed in the hazardous work space; and a third biosignal information unit installed on the ceiling or wall of the dangerous work space to obtain and provide third biosignal information of the worker.

According to the worker safety system in the hazardous work space according to the present invention,

First, it is possible to more accurately determine the risk of workers working in a hazardous work space. For example, as a first method, the distance between any one of a wearable electronic device worn by the worker (a wearable band worn on the wrist is virtually assumed) and a safety helmet, gloves, face shield, and safety boots worn by the worker In the case where the distance from the preset distance and the predetermined range or more or the state close to the predetermined range is maintained for more than a predetermined time, it can be determined that the operator is in a dangerous state.

As a second method, the abnormally loud noise generated according to irregularly changing alarms or dangerous situations generated by the system, for example, when pipes such as equipment or pipes are ruptured, etc. Based on the temporal correlation and response correlation between the acoustic data and the worker's bioinformation signal corresponding to or reacting to the sound data, the bioinformation signal does not respond or the response occurs even after a certain period of time has elapsed. If not, it can be determined that the operator is not in a normal physical or biological state, that is, a dangerous state.

Second, it is possible to more accurately determine the worker location information. The worker's personal identification information and worker location information are transmitted to the central control unit using LoRa communication. In addition, the communication unit periodically calls the location information of the smartphone carried by the worker and transmits the worker's personal identification information using LoRa communication. It is transmitted to the central control unit, and the location information of the smartphone carried by the worker is preliminarily transmitted to the central control unit through the mobile communication network to which the smartphone is subscribed, thereby checking the worker location information overlappingly.

Third, it is possible to safely guide the evacuation route of the worker. It is possible to construct an escape or evacuation route as a route with a low risk state index. In addition, although escaping to the outside may be generally safe, on the contrary, due to the presence of toxic gas, the outside of the confined space may be more dangerous, It is possible to give an instruction to stay inside and wait for rescue, and if necessary, it is possible to try to escape after neutralizing the toxic gas outside.

Fourth, it is possible to additionally secure time for structure and response of workers. Further including an emergency rescue and response unit, when it is determined that the operator is in a dangerous state or the operator is reconfirmed that the operator is in a dangerous state, in order to additionally secure time for the rescue and response of the operator, the compressed oxygen pump in the hazardous work space It is possible to increase the oxygen concentration by operating

1 is a schematic block diagram of an operator safety system in a hazardous workspace according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

(Operator safety system in hazardous work space)

A system for the safety of workers working in a hazardous work space according to a preferred embodiment of the present invention includes a biosignal information unit, an image information unit, an environment information unit, a personal identification information generating unit, a worker location information unit, and a central control unit.

Here, the hazardous work space may be an open space outdoors, but usually an underground space, a construction site such as a tunnel excavation, or a closed space where toxic gas that can threaten life can be generated is mainly premised. do it with

In addition, the bio-signal information unit is configured to obtain and provide bio-signal information of an operator working in the above-described dangerous work space. The biosignal can measure the worker's body temperature, pulse wave, brain wave, and oxygen saturation (SpO2), and furthermore, it is possible to store the worker's gait information by adopting a gyro sensor. It is used to confirm the location in the hazardous work space based on the gait information, or the gait information is processed together with the barometric information to determine the height (height) in the hazardous work space, that is, what floor it is located on in a multi-story building, or how many floors It is also possible to check how many floors it is located in.

Here, the bio-signal information unit, a first bio-signal information unit that obtains and provides the first bio-signal information of the worker through any one or more of a wearable electronic device, a safety helmet, gloves, a face shield, and safety boots worn by the worker , a radar sensor located in equipment arranged or installed in a hazardous work space, a second bio-signal information unit providing obtaining second bio-signal information of the operator, and/or installed on the ceiling or wall of the hazardous work space, A third biosignal information unit may be included to obtain and provide biosignal information.

In addition, the image information unit may be a CCTV, a surveillance camera, a network camera, or a monitoring camera that provides image information by photographing the above-described dangerous work space and work activities of the worker. It is also possible to install an omni-directional fisheye camera that takes a 360-degree omnidirectional camera as a camera for photographing a hazardous work space.

In addition, the environmental information unit is configured to obtain and provide environmental information of the hazardous work space.

Here, the environment information unit, through any one or more of a wearable electronic device, a safety helmet, gloves, a face shield, and safety boots worn by the worker, the first environment information unit to obtain and provide the first environment information of the hazardous work space , a second environmental information unit that provides to obtain the second environmental information of the hazardous work space from equipment placed or installed in the hazardous work space, and/or the method of sensing by branching the suction path from the intake/exhaust fan or duct structure of the hazardous work space As such, it may include a third environment information unit that obtains and provides third environment information of the hazardous work space.

Specifically, the first to third environmental information units, including a harmful gas sensor, a temperature sensor, a pressure sensor, a humidity sensor, a fire sensor, etc., environment that can affect the workers in the hazardous work space inside and outside the enclosed space , safety, explosion, fire, etc. environmental information is collected and transmitted to the central control unit.

In addition, through the noxious gas sensor, it is possible to detect not only the noxious gas but also the non-hazardous gas. For example, carbon monoxide, carbon dioxide, oxygen, hydrogen sulfide, methane gas, and the like can be detected. In addition, as for the environmental information, a microphone for detecting rupture or damage of mechanical devices or pipes is disposed, so that it is possible to detect sounds in the hazardous work space, that is, around the operator. In addition, the environmental information includes a light sensor that detects light, and it is possible to detect the generation of light due to an abnormal explosion. It is possible to identify a risk or predict a risk by sensing the light in the invisible light band, which is not recognized by humans.

Here, in an intake/exhaust fan or duct structure, a separate pipe is bypassed by branching the path through which air is normally sucked, and sensing through the air in the bypassed pipe, increasing the concentration of carbon monoxide or reducing the concentration of oxygen is recognized Thus, the risk level can be differentiated. At this time, since there may be a deviation in the enclosed space or may be asymmetric in the enclosed space, it is possible to select and sense a plurality of suction positions.

In addition, the personal identification information generating unit is configured to generate personal identification information capable of identifying an individual for each worker.

In addition, the worker location information unit is configured to provide worker location information by checking the location information of the worker. When transmitting the location information of the worker to the central control unit to be described later, the personal identification information of the worker is also transmitted to identify the worker. The worker's personal identification information and worker location information can be transmitted to the central control unit using LoRa communication. It is possible to use the GPS reception information present in the safety helmet or wristband worn by the worker for the location information of the worker, and the location can be confirmed through an in-building location information sensor, but is not limited thereto. does not

In addition, it is desirable to periodically call the location information of the smartphone carried by the worker from the communication unit and transmit the worker's personal identification information to the central control unit using LoRa communication. In addition, it is also preferable to transmit the location information of the smart phone carried by the worker to the central control unit through the mobile communication network to which the smart phone is preliminarily subscribed.

Alternatively, a sound wave pattern in an inaudible band including a unique identifier, a light pattern in the invisible band, or a sound wave pattern in the inaudible band and a light pattern in the invisible band are simultaneously generated to determine the location of the operator to generate sound waves at a predetermined position. Alternatively, it is also possible to specify the operator position information by receiving the light pattern and processing it.

Since the inability to accurately specify the location in the hazardous work space is the reason that quick worker rescue is difficult in a number of safety accidents, it is preferable to transmit a plurality of worker location information as described above.

In addition, the central control unit processes and uses at least one or more of the above-described bio-signal information, image information, environmental information, personal identification information, and worker location information, determines the risk of the operator, and manages and supervises the risk of the operator. It is a central server that provides central control functions. In some cases, the server may be implemented in the form of a cloud server, and may include a database or a storage device or storage.

Here, in the central server, cloud server, or database where the central control unit is located, bio-signal information, image information, environmental information, and personal identification that can post-prove or prove that all safety management monitoring and safety obligations within the hazardous work space have been complied with. It is possible to monitor and store information and worker location information. In other words, it can play the role of a black box, so it can be used as proof data when identifying the cause of a safety accident in the future or, if necessary, whether there is negligence or compensation for damages to workers (workers, workers).

In the central control unit, it is possible to remotely access the worker's above-described wearable device, for example, a safety helmet, a wristband, or the like, and monitor the worker's bio-signals through remote access. If necessary, it is possible to measure bio-signals when remote access is made while operating in human mode for power saving.

The communication unit for transmitting to the central control unit may be configured as LoRa communication. The LORA communication unit is a communication module capable of ultra-low power long-distance communication, and it is possible to communicate with an external network as well as to exchange information or data in both directions with a neighboring communication unit.

(Determination of worker's dangerous state)

There may be various methods for judging the dangerous state of a worker who works in a hazardous work space. However, considering that a method for more accurately judging the condition of a clearly dangerous operator with a simple configuration is required, the present applicant has developed the following algorithm.

As a first method, the distance between any one of the wearable electronic device worn by the worker (a wearable band worn on the wrist is virtually assumed) and the safety helmet, gloves, face shield, and safety boots worn by the worker is determined in advance. In the case where the distance from the set distance is greater than or equal to a certain range or a state close to or greater than a certain range is maintained for a predetermined time or longer, it can be determined that the operator is in a dangerous state.

For example, if the operator does not wear safety boots even though they have been removed and is present at a distance or near distance that cannot exist under normal circumstances, for more than 1 minute or 3 minutes, the operator may be judged to be unconscious.

As another example, if the safety helmet and the wearable band of the wrist are abnormally too close in a squatting posture, it may be determined that the operator's condition is in a dangerous state.

As a second method, the abnormally loud noise generated according to irregularly changing alarms or dangerous situations generated by the system, for example, when pipes such as equipment or pipes are ruptured, etc. Based on the temporal correlation and response correlation between the acoustic data and the worker's bioinformation signal corresponding to or reacting to the sound data, the bioinformation signal does not respond or the response occurs even after a certain period of time has elapsed. If not, it can be determined that the operator is not in a normal physical or biological state, that is, a dangerous state.

As a third method, when an alarm, etc. flashes on a display such as an electric signboard that can be seen anywhere in a hazardous work space (usually displayed together with an alarm), the operator responds or responds to the biometric information signal of the operator. Based on the temporal correlation and response correlation, if there is no response to the bioinformation signal or there is no response even after a certain amount of time has elapsed, it is judged that the worker is not in a normal physical or biological state, that is, a dangerous state. can do.

As a fourth method, when a safety accident occurs, it is also possible to detect the amount of impact generated as the worker loses consciousness and falls through the impact sensor mounted on the safety helmet. Alternatively, as a fifth method, it is possible to check the unconscious state by detecting the heart rate or respiration rate of the operator with the above-described radar sensor.

As a sixth method, it is possible to predict the risk when the risk index of the worker displayed in the dangerous workspace map to be described later increases rapidly. It is possible to make a judgment based on previously accumulated data, and it is also possible to predict risks with artificial intelligence by learning the data.

(reconfirmation of worker risk status judgment)

When it is determined that the operator is in a dangerous state, it is also possible to reconfirm that the operator is in a dangerous state by detecting the heart rate or respiration rate of the operator with a radar provided in the dangerous work space.

In this case, the radar may be implemented in a multi-band form based on FWCW. For example, it is possible to use multi-bands of 24 GHz and 60 GHz bands. When detected by radar, the heart rate and respiration rate are measured using the phase and magnitude of the received signal.

At this time, in order for the radar to accurately target the position of the operator existing in the dangerous work space, it is preferable to target using the above-described operator position information.

(Notification of dangerous status or risk prediction to workers)

When an operator is in a dangerous state or is predicted to become dangerous, the five senses that can cause the operator's reaction are used as a means of notifying the operator.

For example, the operator's perception may be induced through not only auditory (sound) but also visual stimuli such as flashes and tactile sensations (vibration, pain) of the wearable device. Specifically, by attaching a bone conduction speaker to the safety helmet to inform the operator of a dangerous state or a risk prediction, it is possible for the operator to easily recognize the noise in the dangerous work space.

In addition, depending on whether the cause of a neighboring worker's loss of consciousness is due to a biosignal or harmful gas, if a specific worker's risk is a hazardous gas, the worker can promptly inform the neighboring worker or notify the worker approaching the hazardous work area so that they can respond. it is necessary to do

Such a danger status notification for workers or risk prediction notifications for workers is to be notified through text messages or apps not only to the workers but also to the administrator of the system.

(Dangerous workspace map and evacuation/evacuation guidance using it)

The central control unit includes a dangerous workspace map that displays the dangerous workspace to be easily recognized visually. The worker location information identified according to personal identification information, worker location information by hour, worker movement route, worker risk index, and worker risk index over time are displayed on the hazardous work space map to display the system Helps managers make intuitive judgments.

In addition, the hazardous work space is divided for each zone in advance, but the risk index for each zone of the hazardous workspace for each zone and the trend of the risk index for each zone over time can be displayed on the hazardous workspace map.

At this time, it is preferable that the zone partitioned in the hazardous work space includes not only the inside of the enclosed space included in the hazardous work space, but also the outside of the enclosed space. Because, normally, only the confined space is considered to be a high risk, and there is a high possibility that it is actually the case.

However, there may be situations where the outside of the confined space is more dangerous than the inside of the enclosed space. For example, there has been a case of drowning in an underground karaoke bar due to a flood. The outside of the confined space was more dangerous than the inside of the enclosed space. In this case, it was much smarter to stay inside the enclosure, lower the barriers and wait for rescue.

As another example, there may be a case in which dangerous gas flows from outside the enclosed space. In this case, it is much safer to stay inside the confined space, lower the barrier and wait for rescue. In consideration of this point, it is preferable that the hazardous work space includes not only the inside of the enclosed space but also the outside of the enclosed space.

In addition, when it is judged that the hazardous work space is dangerous, evacuation or evacuation of workers is induced based on the risk index for each zone, but based on the risk index for each zone, the zone having a risk index for each zone below a specific value (i.e., An escape route or an evacuation route can be created on the basis of an area made up of safer areas).

Here, as described above, when it is determined that the risk index for each zone outside the enclosed space is more dangerous than the risk index for each zone inside the enclosed space, it is possible to induce the operator to stay inside the enclosed space. In this way, it is possible to secure more time for rescue, thereby increasing the chances of survival.

(In case the hazardous work space is expanded or expanded)

In a hazardous working space, there may be a number of bulkheads, multiple enclosed spaces, or an extended hazardous working space. For example, it can be assumed that the dangerous work space is extended for a long time and mining or excavation is carried out at the end.

In this case, the installed relay unit transmits at least one of the bio-signal information, the image information, the environment information, the personal identification information, and the worker location information to the central control unit, wherein the bio-signal information unit, the image information unit, and the environment It is preferable that at least one of the information unit, the personal identification information unit, and the worker location information unit is integrally manufactured.

That is, when excavating a tunnel, the sensor module and relay module are continuously installed while excavating, so that the previous sensor module continuously relays the sensor module sensing value and transmits it to the central control unit.

(Life extension technology)

In addition, when it is determined that the operator is in a dangerous state or it is reconfirmed that the operator is in a dangerous state, in order to additionally secure time for the rescue and response of the operator, the oxygen concentration is increased by operating the compressed oxygen pump in the dangerous work space. Raising, it is preferable to further include an emergency rescue and response unit.

Incidentally, the operator may additionally carry technology such as a compressed oxygen tank or an air can, or it may be attached to the worker's safety helmet.

As described above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equivalent scope of the claims to be described.

10...Safety systems for workers in hazardous workplaces
100...Bio-signal information department
200...Video Information Department
300...Ministry of Environmental Information
400...Personally identifiable information generation unit
500...Operator Location Information Department
600...Central Control Department
700...Ministry of Communications
800...Emergency Rescue and Response Department

Claims (10)

As a safety system for the safety of workers working in a hazardous work space,
a biosignal information unit for obtaining and providing biosignal information of the worker;
an image information unit for providing image information by photographing the dangerous work space and the work activities of the worker;
an environmental information unit that obtains and provides environmental information of the hazardous work space;
a personal identification information generating unit for generating personal identification information capable of identifying an individual for each worker;
a worker location information unit providing worker location information by checking the location information of the worker; and
A central office that processes and uses at least one of the biosignal information, the image information, the environmental information, the personal identification information, and the worker location information, determines the operator's risk, and manages and supervises the operator's risk A central control unit that provides a control function; includes;
A state in which the distance between any one of the wearable electronic device worn by the worker and the safety helmet, gloves, face shield, and safety boots worn by the worker is greater than or equal to a predetermined distance from a preset distance or closer than a certain range If it is maintained for more than a predetermined time, it is determined that the operator is in a dangerous state,
Based on the temporal correlation and reaction correlation between the sound data measured in the dangerous work space generated according to an alarm or dangerous situation and the bioinformation signal of the operator responding to the sound data, the operator is in a dangerous state Judging that
The personal identification information of the worker and the location information of the worker are transmitted to the central control unit using LoRa communication, and the location information of the smartphone carried by the worker is periodically retrieved and the personal identification information of the worker is transmitted to the LoRa Transmitting to the central control unit using communication, and preliminarily transmitting the location information of the smartphone carried by the worker to the central control unit,
When it is determined that the operator is in a dangerous state, the operator's heart rate or respiration rate is sensed with a radar provided in the dangerous workspace to reconfirm that the operator is in a dangerous state,
The central control unit includes a dangerous workspace map that displays the dangerous workspace to be easily recognized visually,
The worker location information identified according to the personal identification information, the worker location information by time of the worker, the movement route of the worker, the worker risk index, and the change of the worker risk index over time are displayed on the dangerous workspace map display,
The hazardous workspace is partitioned for each zone in advance, and the risk index for each zone of the hazardous workspace for each zone and the transition of the risk index for each zone over time are displayed on the dangerous workspace map,
The zone partitioned in the hazardous work space is made including both the inside as well as the outside of the enclosed space in the hazardous work space,
When it is determined that the dangerous workspace is dangerous, the escape of the worker is induced based on the risk index for each zone, and based on the zone having the risk index for each zone below a specific value based on the risk index for each zone create a path with
When it is determined that the risk index for each zone outside of the enclosed space is rather dangerous than the risk index for each zone inside the enclosed space, characterized in that it induces the worker to stay inside the enclosed space,
Worker safety systems in hazardous workplaces.
delete delete delete delete delete The method of claim 1,
When a plurality of bulkheads exist in the dangerous working space, a plurality of enclosed spaces, or the dangerous working space is expanded,
A relay unit for transmitting at least one of the biosignal information, the image information, the environment information, the personal identification information, and the worker location information to the central control unit, the biosignal information unit, the image information unit, the environment information unit, Characterized in that it is formed integrally with at least one of the personal identification information generating unit and the worker location information unit,
Worker safety systems in hazardous workplaces.
8. The method of claim 7,
When it is determined that the operator is in a dangerous state or it is reconfirmed that the operator is in a dangerous state, in order to additionally secure time for the rescue and response of the operator, the compressed oxygen pump is operated in the dangerous work space to increase the oxygen concentration , characterized in that it further comprises an emergency rescue and response unit,
Worker safety systems in hazardous workplaces.
9. The method of claim 8,
The environmental information department,
a first environment information unit that obtains and provides first environment information of the hazardous work space through any one or more of a wearable electronic device, a safety helmet, gloves, a face shield, and safety boots worn by the worker;
a second environment information unit for obtaining and providing second environment information of the hazardous work space from equipment disposed or installed in the hazardous work space; and
A third environment information unit that obtains and provides third environment information of the hazardous work space in a manner of branching and sensing the suction path in the intake/exhaust fan or duct structure of the hazardous work space; including,
Worker safety systems in hazardous workplaces.
10. The method of claim 9,
The biosignal information unit,
a first biosignal information unit that obtains and provides first biosignal information of the worker through any one or more of a wearable electronic device, a safety helmet, gloves, a face shield, and safety boots worn by the worker;
a second bio-signal information unit configured to obtain second bio-signal information of the operator from a radar sensor located in equipment disposed or installed in the dangerous work space; and
A third bio-signal information unit installed on the ceiling or wall of the dangerous work space to obtain and provide third bio-signal information of the worker;
Worker safety systems in hazardous workplaces.

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