WO2023054846A1

WO2023054846A1 - Method for operating work safety system of fire suffocation prevention device

Info

Publication number: WO2023054846A1
Application number: PCT/KR2022/008940
Authority: WO
Inventors: 백우민
Original assignee: ㈜에스엔디글로벌
Priority date: 2021-09-29
Filing date: 2022-06-23
Publication date: 2023-04-06
Also published as: KR20230046184A; KR102359625B1; CN117321648A

Abstract

A method for operating a work safety management system, which comprises a wearable device that measures the concentration of harmful gas, a terminal interlinked with the wearable device, and a work management server that receives information from the terminal, according to an embodiment of the present invention, comprises the steps of: receiving, from the terminal, check results of safety action checklists corresponding to safety action procedures of workers; automatically generating a work permit from the check results; requesting approval and authorization of the work permit to a supervisor terminal; and transmitting a work permit message to the terminal according to the approval and authorization of the work permit, wherein the terminal displays safety action statuses by color on a screen of the terminal on the basis of the concentration of harmful gas that is provided by the wearable device.

Description

Work safety system operation method of suffocation fire accident prevention device

The present invention relates to a work safety management system, and more particularly, to a method for operating a work safety management system in which a work permit creation process is automatically performed when a safety measure procedure is performed before work using a wearable device and a terminal. it's about

According to the rules on occupational safety and health standards, an enclosed space is defined as a place where there is a risk of accident due to oxygen deficiency or suffocation due to harmful gas, fire, or explosion. Specifically, when the oxygen concentration is less than 18% or 23.5% or more, the carbon dioxide concentration is 1.5% or more, and the hydrogen sulfide concentration is 10 ppm or more, the risk of suffocation is high when workers work in confined spaces. Therefore, in order to prevent an accident of suffocation, a sensor for detecting environmental factors such as harmful gases that may cause a safety accident in the work environment is installed.

In addition, recently, a wearable device that senses the concentration of harmful gases around a worker who is directly exposed to harmful gases and informs them of danger has become common. A wearable device can be operated in conjunction with a terminal such as a smartphone. When the concentration of the harmful gas reaches a dangerous level, an alarm is alerted to a worker and transmitted to a work management server to prevent accidents in advance. In particular, in the case of a suffocation accident, it is possible to quickly respond by detecting the surrounding environment of the worker in real time.

According to the rules on safety and health standards of the Occupational Safety and Health Act, before working in a confined space, a confined space safety and health work permit must be prepared and approved and approved by the head of the department to start work. In the field where confined space work is performed, a confined space work permit is still handwritten, and the person in charge approves and permits work. In addition, the written and approved confined space safety and health work permit must be kept for a certain period of time. These work procedures are accompanied by multi-step procedures and document delivery procedures such as drafting and reviewing confined space safety and health work permits, and approving and approving the person in charge. Therefore, from the point of view of practitioners, there is a problem in that a relatively large amount of time is required in the document delivery or approval process.

An object of the present invention is to provide a method of operating a work safety management system in which a safety and health work permit in a closed space is automatically generated through the performance of safety procedures before work in a closed space, and payment and work permit are transmitted over a network.

According to an embodiment of the present invention, a method of operating a work safety management system including a wearable device for measuring the concentration of harmful gas, a terminal interlocked with the wearable device, and a work management server for receiving information from the terminal includes the terminal Receiving check results of safety action checklists corresponding to safety action procedures of workers from the company, automatically generating work permits from the check results, requesting payment and approval of the work permits to a supervisor terminal, and transmitting a work permit message to the terminal according to the payment and approval of the work permit, wherein the terminal classifies the terminal by color on the screen of the terminal based on the harmful gas concentration provided from the wearable device to ensure safety. Display action status.

In this embodiment, the work permit is generated in a dedicated application of the terminal or based on the check result in a work management server.

In this embodiment, the work permit includes concentration information of noxious gas, alcohol, and combustible gas in the confined space.

In this embodiment, the terminal may further include receiving a concentration value of the noxious gas from the wearable device.

In this embodiment, the method further includes detecting a time point at which a gas concentration change occurs in the air in a steady state from a gas concentration display graph generated by the terminal.

According to the above-described embodiment of the present invention, a confined space safety and health work permit is automatically created according to the safety procedure before work using a smartphone terminal, and payment and work approval are possible online. Therefore, it is possible to create a confined space safety and health work permit and work approval through checking the harmful gas in the confined space in real time and check the safety procedure, thereby increasing work concentration and reducing secondary procedures, enabling rapid work.

1 is a block diagram showing a work safety management system according to an embodiment of the present invention.

2 is a block diagram briefly showing the configuration of the wearable device of the present invention.

3 is a diagram showing characteristics of the terminal of FIG. 1;

4 is a block diagram briefly showing the configuration of the workplace management server of FIG. 1 .

5 is a diagram showing a user interface in a dedicated application running in a terminal by way of example.

6 is a flowchart illustratively showing the process of safety measures before work performed in the terminal of the present invention.

7 is a diagram exemplarily showing safety action check lists displayed in the safety action check list area of the present invention.

8A and 8B are diagrams briefly showing a confined space safety and health work permit and an approval procedure that are automatically generated according to the progress of safety measures.

9 is a diagram briefly showing a form of a confined space safety and health work permit automatically generated according to an embodiment of the present invention.

10A to 10C are diagrams showing screen modes for each state displayed on a user interface of a terminal.

11 is a diagram showing a graph display of harmful gases in a report area by way of example.

12 is a diagram showing a user interface screen displayed on a web page of a workplace management server.

13 is a diagram showing a pop-up form of a camera area displayed on a home screen of a web page by way of example.

14 is a diagram showing another example of a user interface screen displayed on a web page of a workplace management server.

15 shows a screen displayed when the log file of FIG. 14 is clicked.

Hereinafter, embodiments of the present invention will be described clearly and in detail to the extent that those skilled in the art can easily practice the present invention.

1 is a block diagram showing a work safety management system according to an embodiment of the present invention. Referring to FIG. 1 , the work safety management system 1 may include a wearable device 10 , a terminal 100 , and a workplace management server 200 . In addition, the work safety management system 1 may further include a supervisor terminal 300 connectable on a network.

The wearable device 10 is mounted on protective equipment, a work vest, a helmet, or the like of a worker performing work in an environment such as a confined space. The wearable device 10 may include a plurality of noxious or combustible gases, sensors for measuring alcohol concentration, and an image sensor such as a camera. The wearable device 10 may transmit the concentration of gases detected by the sensors and the field image to the terminal 100 . When the concentration of the detected noxious gas exceeds a reference value, the wearable device 10 may deliver a notification of related content to the terminal 100 . In addition, the wearable device 10 at the work site is additionally mounted on bone conduction earphones, belts, smart watches, smart helmets, work safety belts, etc. to obtain work site information, body information, environmental information, etc. There will be.

The terminal 100 includes a dedicated application executed for workplace safety management. Sensor data is received from the wearable device 10 by a dedicated application of the terminal 100 to determine the current workplace state, and the concentration of harmful gases, alcohol, combustible gases, etc. is stored over time. The terminal 100 transmits the corresponding check result to the workplace management server 200 when the worker checks the safety action check list according to the order of the safety action procedure.

The terminal 100 may display a CCTV screen detected by an image sensor of the wearable device 10 . The terminal 100 may display the concentrations of harmful gases, combustible gases, and alcohol in the form of graphs and numbers. In particular, when the dedicated application is executed, when the concentration of at least one of harmful gas, combustible gas, and alcohol increases, the terminal 100 changes the background screen to yellow or red, and at the same time uses an alarm sound or vibration to inform the operator. danger can be warned.

In particular, the terminal 100 provides a safety measure checklist before working in an enclosed space. When a worker proceeds with a safety action procedure by using the safety action check list provided in the dedicated application of the terminal 100, the input contents of the safety action check list are automatically transmitted to the workplace management server 200. Then, the workplace management server 200 may generate a confined space safety and health work permit based on the input contents of the safety measure check list, and transmit it to a payment approver. When the approval approver pays for the confined space safety and health work permit and approves the work, the workplace management server 200 may issue a work approval instruction to the terminal 100 .

In another embodiment, the terminal 100 may automatically generate a confined space safety and health work permit inside the terminal 100 when a worker checks a safety measure check list. The generated confined space safety and health work permit may be transmitted to the workplace management server 200 and processed according to payment and approval procedures.

In some cases, the authorization authority for the confined space safety and health work permit corresponds to the supervisor terminal 300 instead of the manager of the workplace management server 200 . For example, there may be a case where a safety and health manager at a work site or a site manager has the authority to approve and approve a confined space safety and health work permit. In this case, the workplace management server 200 may request payment and approval for the closed space safety and health work permit received from the supervisor terminal 300 . In addition, the workplace management server 200 may notify the terminal 100 of a work permission instruction according to the result of payment and approval from the supervisor terminal 300 .

In another embodiment, even when the workplace management server 200 does not exist, it is possible to generate and pay for a confined space safety and health work permit. That is, the terminal 100 may directly transmit the generated confined space safety and health work permit to the supervisor terminal 300 to request payment and work approval. At this time, the supervisor terminal 300 will directly transmit the result of payment and approval for the received confined space safety and health work permit to the terminal 100 .

2 is a block diagram briefly showing the configuration of the wearable device of the present invention. Referring to FIG. 2 , the wearable device 10 may include a plurality of

sensors

11, 12, 13, and 14, a determination unit 15, and a communication unit 16.

The plurality of

sensors

11, 12, 13, and 14 may configure a sensor unit including sensors for detecting harmful gas, combustible gas, alcohol concentration, and the like, and an image sensor. The plurality of

sensors

11, 12, 13, and 14 are built into the wearable device 10 or provided to be exposed to the outside to detect harmful gases, alcohol, or combustible gases that may cause suffocation accidents in the working environment around the operator. . The plurality of

sensors

11, 12, 13, and 14 respectively detect concentrations of oxygen, carbon monoxide, hydrogen sulfide, combustible gas, and alcohol. In addition, the k-th sensor 14 may be an image sensor for a CCTV function that captures a workplace image and delivers it to the determination unit 15 .

At this time, the types of gases detected by the plurality of

sensors

11, 12, 13, and 14 are not limited to oxygen, carbon monoxide, and hydrogen sulfide, but can also detect harmful gases that may occur in each work environment. A sensor may be further provided. For example, in the case of an enclosed work environment such as a refrigerated warehouse, an additional sensor capable of detecting nitrogen may be provided because excessive nitrogen is generated due to vaporization of liquid nitrogen and there is a concern about suffocation of workers. The sensor applies a dedicated sensor that detects only one type of gas in response to each gas according to the type of gas that causes the worker's suffocation accident.

The determination unit 15 transmits concentration information or image information of harmful gases provided by the plurality of

sensors

11, 12, 13, and 14 to the communication unit 16. In particular, the determination unit 15 sends a notification to the terminal 100 linked with the wearable device 10 when the concentration of the harmful gas detected by the plurality of

sensors

11, 12, 13, and 14, respectively, is out of the reference value. can be sent

The communication unit 16 transmits gas concentration information, image information, notification signals, etc. transmitted from the determination unit 15 to the terminal 100 . The communication unit 16 may communicate with the terminal 100 using, for example, Bluetooth. However, the communication method of the communication unit 16 is not limited thereto.

3 is a diagram showing characteristics of the terminal of FIG. 1; Referring to FIG. 3 , the terminal 100 may be implemented as a smart phone, but may be implemented in various forms such as a desktop computer or a mobile communication device. The terminal 100 may include a wireless communication unit 110, an input/output interface unit 120, an operating system 130, a dedicated application 140, and a memory 150.

The wireless communication unit 110 connects the terminal 100 and the wearable device 10 and the terminal 100 and the workplace management server 200 using wireless communication. The wireless communication unit 110 may include a wireless communication module. For example, Bluetooth or Wi-Fi is used between the terminal 100 and the wearable device 10, and Wi-Fi or 2G, 3G, 4G, It is possible to communicate using mobile communication networks such as 5G and 6G.

The input/output interface unit 120 may be used to input characters or numbers into the terminal 100 or to provide contents to the terminal user. The input/output interface unit 120 may be connected to an internal input device such as an on-screen keyboard or an external input device (eg, a keyboard or an electronic pen) using a cable or Bluetooth. In addition, the input/output interface unit 120 may be connected to an internal output device such as a display or an external output device (eg, a monitor or printer) using a cable or Bluetooth. For example, the input/output interface unit 120 may be implemented as a touch screen. In addition, the input/output interface unit 120 may be connected to an audio output device such as a speaker or an audio input device such as a microphone. The user may install the dedicated application 140 or input user information or password using the input/output interface unit 120 when signing up for membership or logging in.

The operating system 130 may provide an environment in which the dedicated application 140 may be executed. The dedicated application 140 may be installed and executed in the terminal 100 through an Internet network or a storage medium. The operating system 130 may be, for example, any one of various mobile operating systems such as Android, iOS, Windows Phone, Symbian, Bada, and Tizen.

The dedicated application 140 may be installed and operated on the operating system 130 . In particular, the dedicated application 140 applies the user interface (UI) of the present invention to sequentially transmit the input items to the workplace management server 200 when a worker inputs a safety procedure. Then, the workplace management server 200 may automatically generate a confined space safety and health work permit and request payment and approval from the work permit holder. In another embodiment, the dedicated application 140 generates a confined space safety and health work permit using the input items when a worker inputs a safety measure checklist on the user interface (UI) and transmits it to the workplace management server 200. may be Then, the workplace management server 200 may request payment and approval of the confined space safety and health work permit transmitted from the terminal 100 to a work supervisor or permittee. The dedicated application 140 provides an alarm according to the current concentration of harmful gases to the operator, as well as the input of safety action procedures and the creation of confined space safety and health work permits, CCTV screens, and graphs or graphs of the current concentration of harmful gases It can also be provided numerically.

The memory unit 150 may provide a storage space for driving the operating system 130 . The memory unit 150 may operate as a driving memory required to download and install the dedicated application 140 . Also, the memory unit 150 may store external data input through the wireless communication unit 110 or internal data to be provided to the outside.

4 is a block diagram briefly showing the configuration of the workplace management server of FIG. 1 . Referring to FIG. 4 , the workplace management server 200 may include a communication interface 210 , a controller 230 , and a database 250 .

The communication interface 210 communicates with the workplace management server 200 and the terminal 100 (see FIG. 1) through a wireless network. The communication interface 210 allows external servers to perform wireless or wired communication with a communication terminal. For example, the communication interface 210 may be Ethernet communication, near field communication (NFC), radio frequency identification (RFID) communication, mobile telecommunication, memory card communication, and universal communication. One or more of Universal Serial Bus (USB) communications may be performed.

The control unit 230 performs functions such as management of applications executed in the workplace management server 200, generation of work permits, payment and approval management of work permits, monitoring of work sites, and log and management of work permits. To this end, the controller 230 may include a safety and health work permit generation module 220, a permit payment management module 240, a field monitoring module 260, and a log management module 280.

The safety and health work permit generation module 220 generates a closed space safety and health work permit according to the safety measures performed by the terminal 100 . The safety and health work permit generation module 220 generates a closed space safety and health work permit by referring to the inspection result of each item of the safety action procedure performed by the operator in the terminal 100 and the concentration of harmful gases or whether the worker is drunk or not. generate In another embodiment, the confined space safety and health work permit may be generated in the terminal 100 . In this case, the function of the safety and health work permit generation module 220 in the control unit 230 will be deleted. A specific example of the safety and health work permit will be described in detail in the drawings to be described later.

The permit payment management module 240 performs a payment and approval procedure for the generated confined space safety and health work permit. The permit approval management module 240 transfers the generated confined space safety and health work permit to a work manager or safety manager who has approval and approval rights for the confined space safety and health work permit, and requests approval. When the payment is completed, the permission payment management module 240 notifies the terminal 100 that the confined space safety and health work permit has been paid and approved.

The site monitoring module 260 processes and displays CCTV images of the work site. The field monitoring module 260 may decode an image captured by an image sensor among a plurality of

sensors

11, 12, 13, and 14 of the wearable device 10 and display the image on the display of the workplace management server 200.

The log management module 280 accumulates and stores records of safety checks performed using the terminal 100 and procedures for entering and exiting closed places. The log management module 280 may store a confined space safety and health work permit generated when working in a confined place. When requested by the manager of the workplace management server 200, the log management module 280 may retrieve work history or provide a confined space safety and health work permit previously processed by a work permit. For this purpose, the log management module 280 may have a separate database 250.

Although not shown, the control unit 230 may further include an application management module for managing a dedicated application running in the terminal 100 or the supervisor terminal 300 or a web page of the workplace management server 200 . The application management module may provide services such as installation and operation of dedicated applications such as the terminal 100 or the supervisor terminal 300 and authentication.

The database 250 may automatically store the closed space safety and health work permit generated by the safety and health work permit generation module 220 or the jobs managed by the log management module 280 by date and time. Upon request from the control unit 230, the database 250 may provide stored confined space safety and health work permits, previously performed safety check records, confined space access procedures, and video records.

5 is a diagram showing a user interface in a dedicated application running in a terminal by way of example. Referring to FIG. 5 , when a dedicated application 140 (see FIG. 3 ) is driven, a basic user interface (UI) screen displayed on the terminal 100 is shown. The screen mode of the user interface (UI) can be displayed in one of 'Safety Procedures (Start)', 'Safety Measures (Normal)', 'Safety Measures (Caution)', and 'Safety Measures (Danger)'. there is.

When the user interface (UI) of the dedicated application 140 is activated on the terminal 100, a white background 'safety procedure (start)' mode screen is preferentially displayed. In 'Safety Procedure (Start)' mode, interlock control area 121 for controlling Bluetooth and camera on/off, screen mode area 122 displaying screen mode, safety measures check list area 123, camera It includes an area 124, a report area 125, and a status notification area 126 displaying the risk level of the workplace.

The interlocking control area 121 is provided as a field for controlling interlocking between the terminal 100 and the wearable device 10 or checking an interlocking state. If the terminal 100 and the wearable device 10 are linked through Bluetooth, the Bluetooth pairing status of the linkage control area 121 will be displayed. However, it will be well understood that the interworking state between the terminal 100 and the wearable device 10 is not limited to Bluetooth. In addition, the interlocking control area 121 may also include a touch button for turning on/off the camera of the wearable device 10 .

The screen mode area 122 displays the current state of the workplace where the wearable device 10 and the terminal 100 are located in text. Depending on the screen mode, the screen mode area 122 may display one of 'Safety Measures (Start)', 'Safety Measures (Normal)', 'Safety Measures (Caution)', and 'Safety Measures (Danger)'. there is. Before filling out the workplace safety measures checklist, 'Safety Procedures (Start)' will be displayed. If the concentration of harmful gases among the sensors of the wearable device 10 reaches the danger or caution level, the display mode of the screen mode area 122 will be changed along with the icon of the status notification area 126. .

The safety action check list area 123 provides check items of procedures through which an operator can check the situation or conditions of a site for safety measures before work. Items can be moved by scrolling. The worker can prepare for a safe work in the confined space workplace by sequentially inputting the check items displayed in the safety action check list area 123 . In addition, when the check items displayed in the safety action check list area 123 are checked, the corresponding check items are transmitted to the workplace management server 200 in real time. In addition, the safety and health work permit generation module 220 of the workplace management server 200 may generate a closed space safety and health work permit using check items transmitted in real time. In another embodiment, if the check items displayed in the safety action check list area 123 are checked, a confined space safety and health work permit may be generated by the dedicated application 140 of the terminal 100 for the check items. In addition, the confined space safety and health work permit generated by the terminal 100 may be transmitted to the workplace management server 200 in real time.

When the input of the check items in the safety action check list area 123 is completed, the creation of the closed space safety and health work permit (in the terminal or workplace management server) is completed, and the approval and approval process proceeds. Approval and payment of the confined space safety and health work permit is performed by the permit payment management module 240, and when payment and approval are completed, a work permission message will be transmitted to the terminal 100.

A screen sensed by a camera of the wearable device 10 is displayed in the camera area 124 . If the camera interlocking of the interlocking control area 121 is in an OFF state, the camera area 124 will be deactivated.

The report area 125 may numerically display the concentration of harmful gas, alcohol, combustible gas, or the like sensed by the wearable device 10 . For example, the report area 125 includes the measured concentration value of oxygen (O2), the measured concentration value of alcohol, the measured concentration value of hydrogen sulfide (H ₂ S), the measured concentration value of carbon monoxide (CO), and the measured concentration value of combustible gas (LEL). The measured concentration value can be displayed in real time. In particular, each icon is displayed in white text on a blue background when the concentration of the corresponding gas is within the 'normal' range. On the other hand, each icon is displayed in white text on a yellow background when the corresponding gas is in the concentration range corresponding to 'Caution', and in white letters on a red background when the concentration range corresponds to 'danger'. In addition, when each icon of the gases is touched, the time-sequentially measured gas concentration change trend is displayed in a pop-up graph form.

The status notification area 126 visually displays whether the concentration of harmful gas, alcohol, combustible gas, etc. sensed by the wearable device 10 is within a 'normal' range, a 'caution' range, or a 'danger' range. For example, in the screen modes of 'Safety Measure Procedure' and 'Safety Measure Normal', 'Normal', 'Caution', and 'Danger' icons are all transparently displayed (inactivated). However, when at least one of the concentrations of harmful gas, combustible gas, or alcohol is within the range corresponding to 'Caution', only the 'Caution' icon is activated (bold text) and the remaining icons are displayed transparently (inactivated). And, when at least one of the concentrations of harmful gas, combustible gas, or alcohol is in the range corresponding to 'danger', only the 'danger' icon is activated (bold text) and the remaining icons are displayed transparently (inactivated).

6 is a flowchart illustratively showing the process of safety measures before work performed in the terminal of the present invention. Referring to FIGS. 5 and 6 , a worker may create a confined space safety and health work permit by filling out a checklist displayed in a safety action checklist area 123 of the terminal 100, and may request payment and approval.

In step S110, when the dedicated application of the terminal 100 is driven, signals sensed from the wearable device 10 are received. The wearable device 10 will sense the concentration information of noxious gas, combustible gas, alcohol, etc., and transmit it to the terminal 100 together with whether or not there is danger. Then, the dedicated application 140 (see FIG. 3) of the terminal 100 may display the screen mode of the user interface (UI) as 'safety action procedure (start)' and request input of the safety action check list.

In step S120, the safety action checklists in the safety action check list area 123 displayed in the 'safety action procedure (start)' screen mode are checked by the task manager. Among the safety measures checklist, the concentration values of harmful gases can be automatically entered without operator input.

In step S130, a confined space safety and health work permit is automatically generated according to the check results of each of the safety measures checklists. In one embodiment, the confined space safety and health work permit is generated in the dedicated application 140 of the terminal 100 . In another embodiment, the safety action check list is delivered to the workplace management server 200 in real time. In addition, the closed space safety and health work permit will be generated using the checklists transmitted in real time by the safety and health work permit generation module 220 of the workplace management server 200 .

In step S140, when the generation of the confined space safety and health work permit is completed, the approval and approval process for the written permit is performed. Approval and approval of the confined space safety and health work permit may be performed by the permit payment management module 240 .

In step S150, the dedicated application of the terminal 100 performs operation branching according to whether the confined space safety and health work permit is paid and approved. If the confined space safety and health work permit is approved and the work is approved (yes direction), the procedure moves to step S160. On the other hand, if the approval of the confined space safety and health work permit is rejected, and the work is not approved (no direction), the procedure moves to step S170.

In step S160 , the terminal 100 may inform the payment and work approval message of the confined space safety and health work permit, permission to enter the workplace or start of work to the worker.

In step S170, the terminal 100 may display a message of rejecting the confined space safety and health work permit and not allowing work on the user interface (UI).

7 is a diagram exemplarily showing safety action check lists displayed in the safety action check list area of the present invention. Referring to FIG. 7 , in the screen mode of 'safety action procedure (start)', a check list and keys for touching whether or not to check are arranged in the safety action check list area 123 .

In the screen mode of 'safety action procedure (start)', if the safety action check list area 123 is touched, the safety action check list pops up to facilitate reading and touch. It will be well understood that the contents of the checklist shown in the safety action procedure are exemplary, and can be variously changed, added, or deleted according to the check items of the confined space safety and health work permit or according to the needs of the manager.

For the safety procedure, the operator can check or confirm the workplace environment or equipment according to the procedure indicated in each item, and touch the keys of 'Yes' or 'No' according to the result. The check of safety measures in the terminal 100 may be transmitted to the workplace management server 200 in real time to support creation of a closed space safety and health work permit. Alternatively, the confined space safety and health work permit may be directly generated in the terminal 100 according to the check result of the safety action procedure.

Referring to FIG. 8A , a confined space safety and health work permit is generated by the terminal 100 according to the safety measures before work, and the work permit may be approved online without intervention of the workplace management server 200 .

In step S210 , concentration values of harmful gases, combustible gases, and alcohol detected by sensors of the wearable device 10 or on-site image information sensed by a camera are transmitted to the terminal 100 . Of course, at this time, alarms such as danger and caution determined by the wearable device 10 may also be provided.

In step S220, the terminal 100 transmits the concentration values of harmful gases, combustible gases, and alcohol provided from the wearable device 10 or field image information sensed by the camera to the supervisor terminal 300 in real time.

In step S230, the terminal 100 may start a safety procedure. Check items of the safety action check list area 123 displayed in the 'safety action procedure (start)' screen mode of the user interface (UI) of the terminal 100 will be checked by the operator.

In step S235, the check result of each of the check items of the safety action procedure may also be transmitted to the supervisor terminal 300.

In step S240, the terminal 100 will generate a confined space safety and health work permit using the check items of the safety action procedure transmitted in real time.

In step S250, when the creation of the generated confined space safety and health work permit is completed, approval and payment procedures are performed. The terminal 100 may request approval and payment of the confined space safety and health work permit from the supervisor terminal 300 .

In step S260, if the confined space safety and health work permit is paid and the approval authority approves (yes direction), the supervisor terminal 300 transmits an approval message to the terminal 100 (S270). At this time, the supervisor's terminal 300 will deliver a message allowing the terminal 100 to work or enter the confined space. On the other hand, if the approval of the confined space safety and health work permit and the approval authority rejects the approval (no direction), the work or entry into the confined space will be suspended and necessary measures will be taken (S280).

8B is a diagram showing an embodiment in which a closed space safety and health work permit is generated when the workplace management server 200 exists. Referring to FIG. 8B , a confined space safety and health work permit is generated by the terminal 100 and transmitted to the workplace management server 200 according to the safety measures before work.

In step S310 , concentration values of harmful gases, combustible gases, alcohol, etc. detected by the sensors of the wearable device 10 and images captured by the camera are transmitted to the terminal 100 . Of course, at this time, alarms such as danger and caution determined by the wearable device 10 may also be provided.

In step S315, the terminal 100 transmits concentration values of harmful gases, combustible gases, and alcohol provided from the wearable device 10 or field image information sensed by the camera to the workplace management server 200 in real time.

In step S320, the terminal 100 may initiate safety measures by an operator. Check items of the safety action check list area 123 displayed in the 'safety action procedure (start)' screen mode of the user interface (UI) of the terminal 100 will be checked by the operator.

In step S330, the dedicated application 140 of the terminal 100 will automatically generate a confined space safety and health work permit using the items checked according to the safety measures procedure.

In step S340, the confined space safety and health work permit generated by the terminal 100 may be transmitted to the workplace management server 200.

In step S350, the approval and payment procedure for the confined space safety and health work permit transmitted from the terminal 100 proceeds. The permit payment management module 240 may request the supervisor terminal 300 to approve and pay for the confined space safety and health work permit. Here, when the payment approver is the manager of the workplace management server 200, the procedure for requesting approval from the supervisor terminal 300 may be omitted.

In step S360, if the confined space safety and health work permit is paid and approved by the approval authority (yes direction), the supervisor terminal 300 transmits an approval message to the workplace management server 200 (S370). Then, the workplace management server 200 will deliver a message permitting access to the work or confined space to the terminal 100 (S380).

On the other hand, if the approval of the confined space safety and health work permit and the approval authority rejects the approval (no direction), the work or entry into the confined space will be suspended and necessary measures will be taken (S390).

In step S392, the terminal 100 will transmit the work execution status to the workplace management server 200 in real time. The terminal 100 may transmit the state of the work site captured by the camera from the wearable device 10 to the work site management server 200 in real time.

In step S394 , the work manager or supervisor may instruct work direction or on-site action according to the work implementation status displayed on the work site management server 200 if necessary.

According to the procedures shown in FIGS. 8A and 8B, a confined space safety and health work permit is generated according to the check result of the safety action procedure by the operator in the terminal 100, and the payment and approval procedures are automatically performed online. can Therefore, safety measures before work in a dangerous workplace and payment and approval of a permit for work permit are performed simultaneously, so that work can proceed quickly with a high level of safety.

9 is a diagram briefly showing a form of a confined space safety and health work permit automatically generated according to an embodiment of the present invention. Referring to FIG. 9, the confined space safety and health work permit is generated in the terminal 100 or the workplace management server 200 by transmitting the check items input by the operator in real time according to the safety action procedure in the terminal 100. .

First, when a work place, applicant, time, work details, and a list of visitors are entered into the terminal 100 by a worker, they are entered into the form of a confined space safety and health work permit. and '1. As for the contents of 'safety action requirements', values input to the terminal 100 in the safety action procedure performed by the operator are recorded in real time. '2. Harmful air measurement results' are values such as harmful gas, combustible gas, and alcohol concentration transmitted to the terminal 100 are automatically transmitted to the terminal 100 or the workplace management server 200, and at the same time, the confined space safety and health work permit may be recorded on the form. In addition, the final permitter may be input by the operator in the terminal 100 . The workplace management server 200 may transmit the generated confined space safety and health work permit to the final permitter and request payment and work approval of the permit.

10A to 10C are diagrams showing screen modes for each state displayed on a user interface of a terminal. Figure 10a shows the screen mode of 'safety measure (normal)', Figure 10b shows the screen mode of 'safety measure (caution)', and Figure 10c shows the screen mode of 'safety measure (danger)'.

Referring to FIG. 10A, the screen mode of 'safety measures (normal)' is displayed on the user interface of the terminal when the concentration of harmful gas, alcohol, combustible gas, etc. sensed by the wearable device 10 is within the 'normal' range. It is a screen that becomes The screen mode of 'Safety Measures (Normal)' is similar to the 'Safety Measures Procedure (Start)' screen mode, but only the 'Normal' icon is activated in the status notification area (126) (the text is also bold) and the rest of the icons are displayed transparently. (deactivated).

Referring to FIG. 10B, the screen mode of 'safety measures (caution)' is displayed on the user interface of the terminal when the concentration of harmful gas, alcohol, combustible gas, etc. sensed by the wearable device 10 is within the 'caution' range. It is a screen that becomes In the screen mode of 'Safety Measures (Caution)', the background of the screen is changed to yellow, and in the report area 125, the icon of the gas that reaches the range of 'Caution' as the concentration value increases is changed from blue to yellow. Changed. As shown, when the concentration of hydrogen sulfide (H ₂ S) increases to the 'caution' level, the hydrogen sulfide (H ₂ S) icon in the report area 125 is changed to yellow. At this time, in the status notification area 126, only the 'Caution' icon is activated (the text is bold), and the other icons are displayed transparently (inactivated).

Referring to FIG. 10C, the screen mode of 'safety measures (danger)' is displayed on the user interface of the terminal when the concentration of harmful gas, alcohol, combustible gas, etc. sensed by the wearable device 10 is in the 'danger' range. It is a screen that becomes In the screen mode of 'safety measure (danger)', the background of the screen is changed to red, and in the report area 125, the icon of the gas that reaches the range of 'danger' is changed to red as the concentration value increases. . As shown, when the concentration of hydrogen sulfide (H ₂ S) increases to a 'danger' level, the hydrogen sulfide (H ₂ S) icon in the report area 125 is changed to red. At this time, in the status notification area 126, only the 'danger' icon is activated (the font is bold), and the remaining icons are displayed transparently (inactivated).

11 is a diagram showing a graph display of harmful gases in a report area by way of example. Referring to FIG. 11 , when an icon of gases displayed in the report area 125 is touched, a change in gas concentration measured through sensors is displayed in a graph form.

For example, in the screen mode of 'Safety Measures (Caution)', if you touch the icon of a gas whose concentration has changed to the 'Caution' level in the report area 125, the change in concentration of the corresponding gas is displayed as a graph over time. do. That is, the horizontal axis of the graph represents time, and the vertical axis represents the concentration value of the corresponding gas. For example, if you confirm that the concentration of hydrogen sulfide (H ₂ S) is at the 'caution' level and touch the hydrogen sulfide (H ₂ S) icon in the report area 125, the change in concentration over time is displayed as a graph. may appear. If the back button of the graph screen is touched, it is possible to return to the previous report area 125 screen. Therefore, from the gas concentration display graph generated from the interlocked terminal (smartphone, etc.), it is possible to early find the point in time when the gas concentration changes in normal air, so that the urgent situation at the site can be changed through the graph change even before the warning stage. and order early safety measures.

12 is a diagram showing a user interface screen displayed on a web page of a workplace management server. Referring to FIG. 12 , status values transmitted from the terminal 100 are displayed on the web page screen of the workplace management server 200 . The webpage screen can be largely displayed as a home screen and a log screen.

On the home screen of the web page, the status notification area 126, screen mode area 122, safety action check list area 123, camera area 124, report area 125, etc. information is displayed. As information corresponding to the report area 125 of the terminal 100, various harmful gases, combustible gases, and alcohol concentrations may be displayed as a graph. In addition, the safety action check list area 123 is synchronized with the terminal 100 so that the check status may be displayed in real time. The camera area pops up when touched, and an image transmitted from the workplace may be displayed. In addition, the current time and the elapsed time of the work according to the progress of the work are also displayed.

13 is a diagram showing a pop-up form of a camera area displayed on a home screen of a web page by way of example. Referring to FIG. 13 , when a camera area displayed on a home screen of a web page is touched, the camera area is popped up and a workplace image may be displayed. Then, if the return button is touched again, it is possible to return to the previous screen state.

14 is a diagram showing another example of a user interface screen displayed on a web page of a workplace management server. Referring to FIG. 14 , a log screen is shown on the web page of the workplace management server 200 .

On the log screen of the web page, safety checks performed before work performed using the terminal 100 and records of access procedures to sealed places are arranged in a list and displayed. That is, the report information on the closed space safety and health work permit or all work generated during work in the closed place can be stored and displayed as a log file. Log files can be displayed with the title of the job name, job company name, and job date and time.

15 shows a screen displayed when the log file of FIG. 14 is clicked. Referring to FIG. 15 , the work history or workplace status (normal, caution, danger) stored in the selected log file is displayed. That is, the CCTV screen recorded by the camera is reproduced (when a click is applied), and records of safety measures are displayed. In addition, the concentration value of harmful substances corresponding to the recorded time may be displayed on the right side of the graph.

The foregoing are specific embodiments for carrying out the present invention. The present invention will include not only the above-described embodiments, but also embodiments that can be simply or easily changed in design. In addition, the present invention will also include techniques that can be easily modified and practiced using the embodiments. Therefore, the scope of the present invention should not be limited to the above-described embodiments and should not be defined by the following claims as well as those equivalent to the claims of this invention.

Claims

In the operation method of the work safety management system:

The work safety management system,

A wearable device that measures the concentration of alcohol, combustible gas, and harmful gas and captures an image through a camera;

a terminal interworking with the wearable device; and

Including a work management server for receiving information from the terminal,

The operation method of the task management server,

Receiving check results of safety action check lists corresponding to safety action procedures of workers from the terminal;

automatically generating a work permit from the check result;

requesting payment and approval of the work permit to a supervisor terminal; and

Transmitting a work permit message to the terminal according to payment and approval of the work permit;

The terminal includes a safety action check list area, a camera area, a report area, and a status notification area on the screen, and based on the concentrations of the alcohol, the combustible gas, and the noxious gas provided from the wearable device, the terminal's The safety measures are displayed on the screen by color, the concentrations of the alcohol, the combustible gas, and the harmful gas are displayed in numerical values in the report area, and the camera takes pictures when the camera area is touched. A method of displaying real-time image information.
According to claim 1,

The operating method of claim 1, wherein the work permit is generated in a dedicated application of the terminal or based on the check result in a work management server.
According to claim 1,

The operating method of claim 1, wherein the work permit includes concentration information of harmful gases, alcohol, and combustible gases in an enclosed space.
According to claim 1,

The operation method further comprising receiving, by the terminal, a concentration value of the noxious gas from the wearable device.
According to claim 1,

The operation method further comprising the step of detecting a time point at which a change in gas concentration occurs in the normal state air from the gas concentration display graph generated by the terminal.