KR102033376B1 - System and method for safety management of operator - Google Patents

Abstract

According to the present invention, disclosed are a safety management system of an operator and a method thereof. According to one aspect of the present invention, the safety management system of an operator can quickly take measures such as first aid, emergency transfer, and the like for an operator when the operator confronts a dangerous situation.

Description

Safety management system and method of worker {SYSTEM AND METHOD FOR SAFETY MANAGEMENT OF OPERATOR}

The present invention relates to an operator's safety management system and method, and more particularly, to an operator's safety management system and method for effectively responding to a dangerous situation when the operator is facing a dangerous situation to move the operator out of the dangerous situation.

There are various risk workers in our society. At this time, soldiers, police officers, firefighters, workers at construction sites, etc. belong to the dangerous workers.

In particular, in the case of firefighters, even in a life-threatening situation for social safety, they are silently sacrificed and put into work (for example, extinguishing). At this time, the firefighters wear fireproof safety suits (fire suits) to protect the body from flames and are put into work.The safety suits (fire suits) basically only serve to protect the body from flames, and the firefighters are in danger. When faced with a situation (eg, falling in a fire, spreading on a material, etc.), it is not possible to cope with the firefighter's safety-related response, and research on a system capable of performing safety-related response measures is necessary.

Korean Patent Publication No. 2009-0123041 (published Dec. 2, 2009)

The present invention has been proposed in order to solve the above problems, and continuously grasp the safety status of the worker who is working, and if a dangerous situation occurs, the first aid and emergency transfer of the worker can be made quickly Its purpose is to provide a safety management system and method.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by one embodiment of the present invention. It will also be appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

Safety management system of the operator according to an aspect of the present invention for achieving the above object is worn by the worker put into a dangerous situation, is installed on the joint of the worker to measure the joint movement information according to the movement of the joint Including a joint motion measuring sensor, including a plurality of sensors for selectively measuring the position information and body information of the worker to transmit the worker state information including the joint motion information and optionally including the position information and body information Wearable device; And receiving the worker state information from the wearable device, determining whether the worker is in a dangerous situation based on the received worker state information, and processing the worker to escape from the dangerous situation, wherein the joint movement included in the worker state information is included. The posture of the worker is determined based on the information, and the worker's posture information is compared with the worker's state information including the determined worker posture and the worker's posture information including the worker's posture information according to the occurrence of a preset and stored dangerous situation. If it is determined that the worker is in a dangerous situation, and transmits an emergency situation message to the emergency server includes a safety management server to handle the worker to escape from the dangerous situation.

The safety management server transmits the emergency occurrence message to the emergency server to process the worker to escape from the dangerous situation, and transmits the rescue request message to the wearable devices located in the vicinity based on the location information It features.

The wearable device transmits worker status information measured through a sensor to the safety management server, but determines that the communication status is not available when the response message is not received from the safety management server within a predetermined time period from the safety management server. It features.

When the wearable device does not receive a response message from the safety management server, the wearable device determines that the communication is in an incapable state, and detects a dangerous situation based on the worker state information measured by the sensor, at least one of light or sound. It is characterized by emitting one.

The wearable device emits yellow when the worker emits light, and emits yellow when the worker has a slight injury to a part of the body. In case of serious unconscious injuries, red is emitted.

The worker's safety management method in the worker's safety management system according to another aspect of the present invention for achieving the above object is worn by the worker put into a dangerous situation, is installed on the joint portion of the worker movement of the joint A wearable device including a joint motion measuring sensor for measuring joint motion information according to the present invention, the wearable device including a plurality of sensors for selectively measuring the position information and body information of the worker, the joint motion information includes the position information and body Transmitting worker status information optionally including information; And

The safety management server receives worker status information from the wearable device and determines whether the worker is in a dangerous situation based on the received safety information, and processes the worker to escape from a dangerous situation. In the case of joint motion information including posture information obtained by moving a joint, the joint motion information may be compared with a worker's behavior information according to a pre-stored and stored dangerous situation to determine whether the worker is in a dangerous situation, or the worker may It is determined whether the joint movement information including the posture information obtained by moving the movement within a predetermined time, and if it is determined that the worker is in a dangerous situation, by sending an emergency occurrence message to the emergency server, the worker is in a dangerous situation. Processing to deviate from; It includes.

The processing of the worker to escape from the dangerous situation, the safety management server, the emergency situation occurrence message to the emergency server to process the worker to escape from the dangerous situation, based on the location information And transmitting a rescue request message to wearable devices located at.

When the wearable device transmits the worker status information measured through the sensor to the safety management server, but does not receive a response message from the safety management server within a predetermined time from the safety management server to determine that the communication is incapable of communication. It characterized in that it comprises a step.

Determining that the communication is incapable of receiving a response message from the safety management server, the wearable device may detect a dangerous situation based on worker state information measured by the sensor. Characterized in that it comprises the step of releasing at least one.

Emitting at least one of the light or the sound, when the wearable device emits the light, emits yellow when the worker has a minor injury to a part of the body, the worker is conscious but unable to move It is characterized in that it comprises the step of emitting an orange in case of severe injury such as the case, and in the case of serious unconscious injury.

According to one aspect of the present invention, when the worker is facing a dangerous situation, there is an effect that can be quickly made measures such as first aid and emergency transfer for the worker.

The effect obtained in the present invention is not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. .

The following drawings attached to this specification are illustrative of the preferred embodiments of the present invention, and together with the specific details for carrying out the invention serve to further understand the technical spirit of the present invention, the present invention to such drawings It should not be construed as limited to the matters described.
1 is a schematic configuration diagram of a safety management system of a worker according to an embodiment of the present invention,
2 is a view showing a flow of a safety management method of a worker according to an embodiment of the present invention,
3 is a view showing a flow of a safety management method in the safety management server according to an embodiment of the present invention;
4 is a view showing the flow of a safety management method of a worker according to another embodiment of the present invention.

The above objects, features, and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless otherwise stated. In addition, the “…” described in the specification. “Unit” refers to a unit that processes at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

1 is a schematic configuration diagram of a safety management system of a worker according to an embodiment of the present invention.

Referring to FIG. 1, a safety management system of a worker according to the present embodiment includes a wearable device 110 and a safety management server 120. In this case, the wearable device 110 and the safety management server 120 may be connected by a network. In this case, the network may mean a network capable of transmitting and receiving data through an internet protocol using various wired and wireless communication technologies such as an internet network, an intranet network, a mobile communication network, and a satellite communication network. Meanwhile, the network is not only a closed network such as a local area network (LAN), a wide area network (WAN), and an open network such as the Internet, but also code division multiple access (CDMA) and wide band code division multiple access (WCDMA). , Global System for Mobile Communication (GSM), Long Term Evolution (LTE), and EPC (Ecolved Packet Core), and future generations of networks and computing networks. In addition, the wearable device 110 and the safety management server 120 may communicate using at least one of short-range communication and remote communication, the short-range communication is Bluetooth (Bluetooth), Radio Frequency Identification (RFID), infrared communication (IrDA) , infrared Data Association (UWB), Ultra Wideband (UWB), ZigBee, and Wireless Fidelity (Wi-Fi) technologies.Telecommunications include code division multiple access (CDMA), frequency division multiple access (FDMA), and time division multiple access), orthogonal frequency division multiple access (OFDMA), and single carrier frequency division multiple access (SC-FDMA) technology.

The wearable device 110 is worn by a worker who is put into a dangerous situation and includes a sensor for measuring various information. In this case, the worker put into a dangerous situation may be a soldier, a police officer, a firefighter, a worker at a construction site, and the like. In this case, the wearable device 110 may be a fire protection clothing having a fire protection function. On the other hand, the sensor for measuring a variety of information may be a location information measurement sensor, body information measurement sensor and joint motion measurement sensor, and the like, wearable device 110 of the worker (firefighter) is put into a dangerous situation through the above-described various sensors. Worker status information (eg, location information, body information, joint motion information, etc.) is measured. For example, the wearable device 110 measures the position of a firefighter by using a position sensor to measure the position of a firefighter in a place where a fire has occurred, and measures the position of a current firefighter, and measures body-related information such as heart rate and pulse information of a firefighter. Measured through a measurement sensor, and measures the action taken by the firefighter through the joint motion measurement sensor and transmits to the safety management server 120 to be described later. At this time, each sensor may be installed at any position inside the wearable device 110, but the body information measuring sensor is installed at a position close to the heart for the accuracy of the measured information, and the joint motion measuring sensor is at a position in contact with the joint. It is preferable that a plurality is installed. A plurality of joint motion measuring sensors may be installed at positions contacting the joints to measure the movements generated by the actions of the firefighter (worker) wearing the wearable device, that is, the movements of the joints. Accordingly, the movement of the firefighter (worker) wearing the wearable device (for example, sitting, falling down, moving, etc.) can be recognized, and what actions are taken. In other words, the wearable device 110 may be a fire suit including a sensor (position information, body information, joint motion information, etc.) measuring a plurality of pieces of information worn by a worker who is put into a dangerous situation, and having a joint motion measuring sensor. Generates information by measuring the joint movement of the worker through, but selectively measuring the position information and / or body information of the worker, and optionally include the location information and / or body information in the joint motion information of the worker to be described later It may be transmitted to the management server 120.

The safety management server 120 receives worker status information from the wearable device 110 and determines whether a worker is in a dangerous situation based on the received worker status information. For example, when the safety management server 120 receives the worker status information from the wearable device 110, if the location information included in the worker status information does not change for a predetermined time, the worker is in danger. You can judge. That is, when a firefighter is faced with a dangerous situation, such as being put on a fire site during the operation, the firefighter may not move and the location information may not be changed, so the safety management server 120 has a predetermined time. If no changes occur during this time, the worker may be considered at risk. Thereafter, the safety management server 120 generates an emergency occurrence message (for example, including location information, current time information, etc.), and transmits the generated emergency situation occurrence message to an emergency situation server (not shown). Actions such as rescue team calls, doctor calls, etc. can be taken to escape dangerous situations. In this case, the emergency server may be a server provided in a facility such as a fire station or a hospital. As such, the safety management server 120 can prepare for an emergency situation more quickly by generating an emergency occurrence message and sending it to the emergency server, so that the firefighters can be treated more quickly if injured. . On the other hand, the safety management server 120 may transmit the emergency request message to the emergency situation server, and at the same time, the rescue request message to other wearable devices 110 located in the vicinity based on the location information. As such, the safety management server 120 transmits the rescue request message to the other wearable devices 110 located around the location information based on the location information, so as to escape from the dangerous situation more quickly with the help of other firefighters near the site. can do.

In addition, when the safety management server 120 receives the worker status information from the wearable device 110, when the body information included in the worker status information is not included in the range of the preset information, the worker is in a dangerous situation You can judge. In this case, the preset information corresponds to body information, and may be body related information such as a heart rate, a pulse of a person who performs normal activities, and may be preset and stored in advance. For example, assuming that the heart rate of a person with normal activity is 50 to 100 and the pulse rate is 60 times per minute, the body information included in the worker status information is not included in the heart rate and pulse information of the person with normal activity described above. In case of deviation, the worker may be considered at risk. Thereafter, the safety management server 120 generates an emergency occurrence message (for example, including location information, current time information, etc.), and transmits the generated emergency situation occurrence message to an emergency situation server (not shown). Actions such as rescue team calls, doctor calls, etc. can be taken to escape dangerous situations.

In addition, when the safety management server 120 receives the worker status information from the wearable device 110, when the joint movement information included in the worker status information matches the preset information, the safety management server 120 may determine that the worker is in a dangerous situation Can be. Meanwhile, the joint motion information may include posture information obtained by the worker moving the joint. In this case, the preset information corresponds to joint motion information, and may be behavior information according to the occurrence of a dangerous situation, and may be preset and stored in advance. For example, when displaying an X character with an arm, it may mean that the behavior is inconvenient, and when a large circle is drawn with an arm, it may mean that it is isolated at a certain place. Therefore, when the safety management server 120 receives the behavior information according to the occurrence of the dangerous situation as described above from the wearable device 110, and compares it with the preset information, it is determined that the worker is in a dangerous situation can do. Thereafter, the safety management server 120 generates an emergency occurrence message (for example, including location information, current time information, etc.), and transmits the generated emergency situation occurrence message to an emergency situation server (not shown). Actions such as rescue team calls, doctor calls, etc. can be taken to escape dangerous situations. In addition, when the joint movement information included in the worker state information does not change within a predetermined time, the firefighter may determine that there is no movement in the face of a dangerous situation (eg, a pile of fire, an object, etc.). The safety management server 120 may determine that the worker is in a dangerous situation when receiving the worker state information including the joint motion information as described above from the wearable device 110 from the wearable device 110. In other words, the safety management server 120 receives the worker status information from the wearable device 110, and determines whether or not the worker's dangerous situation based on the received worker status information, so that the worker can escape from the dangerous situation Determining the posture of the worker based on the joint movement information included in the worker state information, and the worker posture information including the worker state information including the determined worker posture and the posture information of the worker according to a preset and stored dangerous situation. Compare and compare the risk status of the worker, and if it is determined that the worker is in a dangerous situation can send an emergency occurrence message to the emergency server to handle the worker to escape from the dangerous situation.

On the other hand, when the safety management server 120 receives the worker status information measured by the sensor from the wearable device 110, it must transmit a response message within a certain time. However, when the wearable device 110 does not receive a response message from the safety management server 120 within a predetermined time period, the wearable device 110 may determine that the communication state is not available. In this case, since the wearable device 110 cannot communicate with the safety management server 120, when a firefighter (worker) faces a dangerous situation, the wearable device 110 may not be able to receive support for a dangerous situation. Therefore, when the wearable device 110 determines that communication with the safety management server 120 is impossible as described above, and detects whether the dangerous situation is based on the worker state information measured by the sensor, light and / or sound By releasing at least one of the dangerous situation can be announced to the surroundings. For example, when the wearable device 110 determines that communication with the safety management server 120 is not possible and detects a dangerous situation based on the worker state information measured by the sensor, the wearable device 110 emits a sound through a speaker to the surroundings. Expose your position to other firefighters in your area and help them out of danger. In addition, when the wearable device 110 determines that communication with the safety management server 120 is not possible and detects a dangerous situation based on the worker state information measured by the sensor, the wearable device 110 emits light such as an LED to the surroundings. Expose your position to other firefighters (workers). More specifically, the wearable device 110 may be yellow in case of a minor injury of a part of the body, orange in case of a serious injury such as a state of consciousness, or incapacity of movement, and red in case of serious injury, such as cardiac arrest. Can be released. In this case, the wearable device 110 may determine based on the information measured by the sensor and emit light corresponding thereto. That is, the wearable device 110 may emit light corresponding to the degree of injury based on the body information measured by the sensor. For example, the wearable device 110 has a red heart rate when the heart rate is not included in the preset range, that is, the heart rate of the person in normal activity is 50 to 100, but the heart rate included in the body information measured by the sensor is 0 or the like. Can emit. However, the present invention is not limited thereto, and the color of light may be selected and emitted by the user except for an unconscious state. In this way, in case of emitting different light according to the degree of injury, it is not only possible to escape from the danger situation with the help of other fire fighters (workers) in the vicinity, but also the other fire fighters (workers) in the vicinity are color-coded. If a lot of light is emitted in the surroundings, the firefighter (worker) may be given priority in case of emergency (red, orange, yellow).

Meanwhile, in the present embodiment, the communication between the wearable devices is performed only when the communication with the safety management server is not possible, but the present invention is not limited thereto, and communication between the wearable devices is performed using short-range communication to communicate worker state information with each other. You can also send and receive.

Hereinafter, with reference to Figures 2 to 4, the worker safety management method in the worker safety management system will be described.

2 is a view showing the flow of a safety management method of a worker according to an embodiment of the present invention.

Referring to FIG. 2, first, the wearable device 110 measures worker state information through a sensor (S210). In this case, the worker state information may include a worker's position information, body information or joint motion information, and the like. The above worker state information may be measured by various sensors included in the wearable device 110.

Thereafter, the wearable device 110 periodically transmits the measured worker status information to the safety management server 120, and the safety management server 120 sends a response message in response to the reception of the worker status information. Transmit to (S220, S230).

Subsequently, the safety management server 120 may determine a risk situation based on the worker state information received from the wearable device 110 and take an action according to the determined risk situation (S240, S250). Hereinafter, the safety management method in the safety management server 120 will be described in more detail with reference to FIG. 3.

3 is a view showing the flow of a safety management method in the safety management server according to an embodiment of the present invention.

Referring to FIG. 3, the safety management server 120 determines a dangerous situation based on worker state information received from the wearable device 110 (S310). At this time, the safety management server 120 may determine whether the worker's dangerous situation based on the worker status information received from the wearable device 110 to process the worker to escape from the dangerous situation.

When the safety management server 120 receives the worker status information from the wearable device 110, if the location information included in the worker status information does not change for a predetermined time, the worker determines that the worker is in a dangerous situation. Transmitting the emergency occurrence message to the emergency server to handle the escape from the dangerous situation (S320, S330, S370). On the other hand, the safety management server 120 transmits an emergency occurrence message to the emergency server to process the worker to escape from a dangerous situation, and at the same time as the wearable devices 110 located in the vicinity based on the location information A rescue request message may also be sent.

In addition, when the safety management server 120 receives the worker status information from the wearable device 110, when the body information included in the worker status information is not included in the range of the preset information, it is determined that the worker is in a dangerous situation Then, the emergency occurrence message is transmitted to the emergency server to process the worker to escape from the dangerous situation (S340, S350, S370).

In addition, when receiving the worker state information from the wearable device 110, the safety management server 120 determines that the worker is in a dangerous situation when the joint motion information included in the worker state information matches the preset information. The emergency occurrence message is transmitted to the emergency server to process the worker to escape from the dangerous situation (S360, S370).

4 is a view showing the flow of a safety management method of a worker according to another embodiment of the present invention.

Referring to FIG. 4, first, the wearable device 110 measures worker state information through a sensor (S410). In this case, the worker state information may include a worker's position information, body information or joint motion information, and the like. The above worker state information may be measured by various sensors included in the wearable device 110.

Thereafter, the wearable device 110 periodically transmits the measured worker state information to the safety management server 120 (S420). However, the wearable device 110 does not receive a response message corresponding to the worker status information transmitted from the safety management server 120 due to a communication inability due to an abnormality of the network, an abnormality of the safety management server 120, or the like. It may not be possible (S430).

As described above, when the wearable device 110 does not receive a response message from the safety management server 120 and determines that the communication device is in a disabled state, the wearable device 110 may emit at least one of light or sound to the surroundings (S440 and S450). ). For example, when the wearable device 110 determines that communication with the safety management server 120 is not possible and detects a dangerous situation based on the worker state information measured by the sensor, the wearable device 110 emits a sound through a speaker to the surroundings. Expose your position to other firefighters (workers). In addition, when the wearable device 110 determines that communication with the safety management server 120 is not possible and detects a dangerous situation based on the worker state information measured by the sensor, the wearable device 110 emits light such as an LED to the surroundings. Expose your position to other firefighters (workers). More specifically, the wearable device 110 may be yellow in case of a minor injury of a part of the body, orange in case of a serious injury such as a state of consciousness, or incapacity of movement, and red in case of serious injury, such as cardiac arrest. Can be released. In this case, the wearable device 110 may determine based on the information measured by the sensor and emit light corresponding thereto.

Methods according to an embodiment of the present invention can be implemented in the form of program instructions that can be implemented as an application or executed through various computer components, and recorded on a computer readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the computer-readable recording medium may be those specially designed and constructed for the present invention, and may be known and available to those skilled in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, and magneto-optical media such as floptical disks. media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the process according to the invention, and vice versa.

While this specification includes many features, such features should not be construed as limiting the scope of the invention or the claims. In addition, the features described in the individual embodiments herein can be implemented in combination in a single embodiment. Conversely, various features described in a single embodiment of the present specification can be implemented individually in various embodiments or in combination as appropriate.

Although the operations have been described in a particular order in the drawings, they should not be understood as being performed in a particular order as shown or in a sequence of successive orders, or all of the described actions being performed to obtain a desired result. Multitasking and parallel processing may be advantageous in certain circumstances. In addition, it should be understood that the division of various system components in the above-described embodiments does not require such division in all embodiments. The app components and systems described above may generally be packaged in a single software product or multiple software products.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawing.

110: wearable device
120: safety management server

Claims (10)

It is worn by a worker who is put into a dangerous situation, is installed on the joint of the worker includes a joint motion measuring sensor for measuring the joint motion information according to the movement of the joint, a plurality of selectively measuring the position information and body information of the worker Wearable device for transmitting the worker status information including the position information and the body information, including the joint movement information, including a sensor of the sensor; And
Receives worker status information from the wearable device, determines whether the worker is in danger based on the received worker status information, and processes the worker to escape from a dangerous situation, but includes joint motion information included in the worker status information. The posture of the worker is determined by comparing the worker posture information including the determined worker posture and the worker posture information including the posture information of the worker according to the occurrence of a preset and stored dangerous situation. And, if it is determined that the worker is in a dangerous situation includes an emergency management server to send an emergency situation message to the emergency server to handle the worker from the dangerous situation,
The wearable device transmits the worker state information measured through the sensor to the safety management server, but if it does not receive a response message from the safety management server within a predetermined time from the safety management server, and determines that the communication is incapable of communication,
The wearable device,
If it does not receive a response message from the safety management server is determined to the communication disabled state,
When detecting a dangerous situation based on the worker state information measured by the sensor, emits at least one of light or sound,
The wearable device,
When emitting the light,
Emits yellow if the worker has a minor injury to the body, emits orange if the worker has a severe injury, such as being conscious but unable to move, and emits red if the worker is injured seriously. Worker safety management system, characterized in that. The method of claim 1,
The safety management server,
Send the emergency occurrence message to the emergency server to handle the worker to escape from the dangerous situation,
Worker safety management system, characterized in that for transmitting the rescue request message to the wearable devices located in the vicinity based on the location information. delete delete delete In the worker safety management method in the worker safety management system,
In a worker's safety management method in the safety management system of the worker wearing the worker in a dangerous situation,
It is worn by a worker who is put into a dangerous situation, is installed on the joint of the worker includes a joint motion measuring sensor for measuring the joint motion information according to the movement of the joint, a plurality of selectively measuring the position information and body information of the worker Transmitting, by a wearable device including a sensor, worker status information including the joint movement information and selectively including the position information and body information; And
The safety management server receives worker status information from the wearable device and determines whether the worker is in a dangerous situation based on the received safety information, and processes the worker to escape from a dangerous situation, wherein the worker status information is In the case of joint motion information including posture information obtained by moving a joint, the joint motion information may be compared with a worker's behavior information according to a preset and stored dangerous situation, or the worker's risk situation may be determined, or the worker may have a joint It is determined whether the joint movement information including the posture information obtained by moving the movement within a predetermined time, and if it is determined that the worker is in a dangerous situation, by sending an emergency occurrence message to the emergency server, the worker is in a dangerous situation. Processing to deviate from; And including,
When the wearable device transmits the worker status information measured through the sensor to the safety management server, but does not receive a response message from the safety management server within a predetermined time from the safety management server to determine that the communication is incapable of communication. Comprising;
When the wearable device does not receive a response message from the safety management server, determining that the communication device is in an incapable communication state,
When the wearable device detects whether a dangerous situation based on the worker state information measured by the sensor, comprising the step of emitting at least one of light or sound,
Emitting at least one of the light or sound,
When the wearable device emits the light, the worker emits yellow when the worker has a slight injury to a part of the body, and emits orange when the worker has a serious injury such as being conscious but unable to move. The method of worker safety management comprising the step of emitting red in the event of serious unconscious injuries. The method of claim 6,
The step of treating the worker to escape from a dangerous situation,
The safety management server, the emergency situation occurrence message to the emergency server to process the worker to escape from the dangerous situation, and transmitting the rescue request message to the wearable devices located in the vicinity based on the location information Worker safety management method comprising a.

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