Safety management method for monitoring safety status and system for performing thereof

Abstract

A safety management system for monitoring a safety status according to an embodiment of the present invention, according to an embodiment of the present application, is characterized by comprising: a monitoring device that acquires sensor data and displays a safety level; an information collection device that collects the acquired sensor data and transmits it to a control server; a portable authentication terminal that transmits a status signal; and a control server that determines a safety level based on sensor data received from the information collection device and provides the determined safety level to the monitoring device. According to an embodiment of the present invention, by linking the monitoring device, the information collection device, and the portable authentication terminal, which are deployed in a plurality of inspection zones such as an electrical room, sensor data and status information of the inspector in each zone can be collected in real time, thereby enabling more precise safety management.

Description

Technology Field

[0001] The present application relates to a safety management method for monitoring a safety state and a system for performing the same. Background Technology

[0003] In industrial facilities such as electrical and machine rooms, environmental changes—including temperature, humidity, electrical leakage, flooding, and gas concentration—can lead to accidents; therefore, systems for real-time monitoring are widely used. However, existing systems often limit themselves to simply collecting and displaying sensor data, which presents limitations in precisely assessing the safety status of workers, such as how long they stay within an area or whether movement between electrical rooms was conducted normally.

[0004] Furthermore, while technology for estimating a worker's location using BLE-based portable terminals is known, simple location estimation alone has limitations in determining whether there are abnormalities in the worker's condition. For instance, existing systems alone find it difficult to effectively detect risk signals based on work patterns, such as when a worker stays in a specific electrical room for an excessively long time or when movement between rooms is abnormally delayed.

[0005] Therefore, there is an increasing need for a safety management system that can determine safety levels by zone and immediately provide this information to workers by comprehensively analyzing environmental sensor data, worker status signals, movement patterns, and AI-based risk events. Prior art literature

[0007] KR10-0135109B The problem to be solved

[0008] The problem that the present invention aims to solve is to enable the real-time collection of environmental conditions for each zone by acquiring sensor data from each zone and transmitting it to a control server.

[0009] In addition, the problem that the present invention aims to solve is to enable the determination of abnormalities by analyzing the location, stay time, and movement time of an inspector based on the status signal of a portable authentication terminal.

[0010] In addition, the problem that the present invention aims to solve is to effectively manage the safety status of the site by integrating sensor data and status signals to determine the safety level of each zone and displaying it.

[0011] The problems that the present invention aims to solve are not limited to those described above, and problems not mentioned will be clearly understood by those skilled in the art from this specification and the attached drawings. means of solving the problem

[0013] A safety management system for monitoring a safety state according to one embodiment of the present invention may include a monitoring device that acquires sensor data and displays a safety level, an information collection device that collects the acquired sensor data and transmits it to a control server, a portable authentication terminal that transmits a status signal, and a control server that determines a safety level based on sensor data received from the information collection device and provides the determined safety level to the monitoring device.

[0014] A method for monitoring a safety state according to an embodiment of the present invention may include the steps of: a monitoring device acquiring sensor data; an information collection device collecting the acquired sensor data and transmitting it to a control server; a portable authentication terminal transmitting a status signal; an information collection device receiving the status signal and transmitting it to the control server; the control server determining a safety level based on the received sensor data and providing the determined safety level to the monitoring device; and the monitoring device displaying the safety level.

[0015] The means for solving the problem of the present invention are not limited to the means for solving the problem described above, and unmentioned means for solving the problem will be clearly understood by those skilled in the art from this specification and the attached drawings. Effects of the invention

[0017] According to one embodiment of the present invention, by linking a monitoring device, an information collection device, and a portable authentication terminal placed in a plurality of inspection zones, such as an electrical room, sensor data from each zone and status information of the inspector can be collected in real time, thereby enabling more precise safety management.

[0018] In addition, according to one embodiment of the present invention, by comprehensively analyzing environmental sensor data, terminal dwell time, time spent moving between electrical rooms, AI camera events, etc., to determine the safety level for each zone, it is possible to detect abnormal situations more advanced than before.

[0019] In addition, according to one embodiment of the present invention, by immediately providing the determined safety level to a monitoring device and visually guiding the worker, it has the effect of contributing to accident prevention and improvement of on-site safety. Brief explanation of the drawing

[0021] FIG. 1 is a system diagram illustrating a safety management system for monitoring a safety state according to one embodiment of the present application. FIG. 2 is a block diagram briefly illustrating the configuration of a monitoring device according to one embodiment of the present application. FIG. 3 is a block diagram briefly illustrating the configuration of an information collection device according to one embodiment of the present application. FIG. 4 is a block diagram briefly illustrating the configuration of a portable authentication terminal according to one embodiment of the present application. FIG. 5 is a block diagram briefly illustrating the configuration of a control server according to one embodiment of the present application. FIG. 6 is a flowchart illustrating a method for managing safety by monitoring a safety state according to one embodiment of the present application. FIG. 7 is a drawing for explaining a method of managing safety by monitoring a safety state according to one embodiment of the present application. FIG. 8 is a drawing for illustrating a method of displaying another safety state in one embodiment of the present application. Specific details for implementing the invention

[0022] The aforementioned objectives, features, and advantages of the present application will become more apparent from the following detailed description in conjunction with the accompanying drawings. However, as the present application is subject to various modifications and may have various embodiments, specific embodiments are illustrated in the drawings and described in detail below.

[0023] Throughout the specification, identical reference numbers generally represent identical components. Additionally, components with identical functions within the same scope of concept appearing in the drawings of each embodiment are described using the same reference numeral, and redundant descriptions thereof are omitted.

[0024] If it is determined that a detailed description of known functions or configurations related to this application could unnecessarily obscure the essence of this application, such detailed description is omitted. Furthermore, numbers used in the description of this specification (e.g., First, Second, etc.) are merely identifiers to distinguish one component from another.

[0025] Furthermore, the suffixes "module" and "part" for components used in the following embodiments are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0026] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0027] In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0028] In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily depicted for convenience of explanation, and the present invention is not necessarily limited to what is illustrated.

[0029] Where an embodiment can be implemented differently, the order of a particular process may be performed differently from the order described. For example, two processes described consecutively may be performed substantially simultaneously or proceed in the reverse order of the description.

[0030] In the following embodiments, when components are described as being connected, the case includes not only instances where the components are directly connected but also instances where components are indirectly connected by interposing them in between.

[0031] For example, when it is stated in this specification that components, etc. are electrically connected, it includes not only cases where the components, etc. are directly electrically connected, but also cases where components, etc. are interposed in between and are indirectly electrically connected.

[0033] Hereinafter, a method and system for managing safety by monitoring the safety status of the present application will be described with reference to FIGS. 1 to 7.

[0035] FIG. 1 is a system diagram illustrating a safety management system for monitoring a safety status according to one embodiment of the present application. Referring to FIG. 1, the safety management system (10) may include a monitoring device (100), an information collection device (200), a portable authentication terminal (300), a control server (400), and an external device (500).

[0037] In the safety management system (10) according to the present invention, the monitoring device (100) may be composed of a plurality of units, and each of the monitoring devices may be placed in each zone where it is necessary to monitor the safety status, such as an electrical room, a machine room, or an inspection space. The monitoring devices are structured to be distributed in zone units, and each monitoring device may individually transmit sensor data acquired through its own sensor to an information collection device.

[0038] In the safety management system (10) according to the present invention, the information collection device (200) may be composed of a plurality of units, and each information collection device may be arranged in each zone, such as an electrical room, a machine room, or an inspection space. The information collection devices are structured to be distributed in zone units, and each information collection device may be configured to include a device that performs the function of receiving sensor data input and at least one device that performs the function of receiving a status signal of a portable authentication terminal. The device that performs the function of receiving a status signal of a portable authentication terminal may be placed at multiple points in one zone.

[0039] In the safety management system (10) according to the present invention, the portable authentication terminal (300) may be a portable device that transmits the location information and safety status of an inspector to an information collection device through a sensor-based situation detection function and a BLE-based broadcast communication function.

[0040] In the safety management system (10) according to this description, the monitoring device, the information collection device, and the portable authentication terminal can communicate with each other through an independent internal communication network separated from the external network.

[0042] The monitoring device (100) can acquire sensor data. Specifically, the monitoring device (100) can acquire sensor data through a plurality of sensors and acquire image data through an AI camera or an IR camera, etc. For example, the plurality of sensors may include a temperature sensor, a humidity sensor, a leakage detection sensor, a flood detection sensor, a dust sensor, an oxygen concentration sensor, and a flammable (or toxic) gas concentration sensor such as carbon monoxide, hydrogen sulfide, propane, or butane. Accordingly, the monitoring device (100) can acquire data to detect accidents such as earthquakes, fire alarms, or flooding. In addition, the monitoring device (100) may further include a tilt sensor and a vibration sensor to acquire data to detect the risk of structural collapse.

[0044] The information collection device (200) can collect acquired sensor data and transmit it to the control server (400). Specifically, the information collection device (200) can receive sensor data from a plurality of sensors included in the monitoring device (100) through a sensor signal input unit, and can packetize the received sensor data to match the communication protocol with the control server (400) and transmit it to the control server (400).

[0046] The portable authentication terminal (300) can transmit a status signal. For example, the portable authentication terminal (300) can broadcast a status signal via BLE according to a set period. Additionally, the portable authentication terminal (300) may be configured to enter the work area after authentication through an information collection device placed at the entrance of the work area when entering or exiting the work area.

[0048] The information collection device (200) can receive status information and transmit it to the control server (400). Specifically, the information collection device (200) can receive status information broadcast from a portable authentication terminal (300) through a short-range wireless communication unit, and can packetize the received status information to match the communication protocol with the control server (400) and transmit it to the control server (400).

[0050] The control server (400) can determine a safety level based on sensor data received from an information collection device and provide the determined safety level to a monitoring device. For example, the control server (400) can determine that the area is in a caution state or a danger state if sensor data, such as temperature, humidity, electrical leakage, flooding, or gas concentration, exceeds a preset threshold value.

[0052] The control server (400) can determine the location of the portable authentication terminal (i.e., whether the inspector is present and the duration of stay) based on the status information of the portable authentication terminal received from the information collection device. The control server (400) can determine that the area is in a dangerous state if the inspector stays in a specific area for more than a preset time. Additionally, the control server (400) can control the monitoring device to provide a warning by determining the area is in a dangerous state when it receives events such as falling or stopping movement from the AI ​​camera. The control server (400) can also determine the safety state by integrating sensor data and status information. If the area is determined to be in a dangerous state, the control server (400) can provide a warning to an external device.

[0054] The monitoring device (100) can display a safety level received from the control server (400). For example, the monitoring device (100) can display the received safety level in a color corresponding to the safety level and can also display the numerical value of the sensor data.

[0056] FIG. 2 is a block diagram briefly illustrating the configuration of a monitoring device according to one embodiment of the present application. Referring to FIG. 2, the monitoring device (100) may include an acquisition unit (110), a communication unit (120), a control unit (130), and a display unit (140).

[0058] The acquisition unit (110) may include a plurality of sensors and at least one camera. Specifically, the acquisition unit (110) may acquire various sensor data to measure the environmental conditions inside the electrical room through a temperature sensor, a humidity sensor, a leakage detection sensor, a flood detection sensor, a dust sensor, an oxygen concentration sensor, or a carbon monoxide concentration sensor.

[0059] Additionally, the acquisition unit (110) can acquire image data to detect whether an inspector is present or has fallen over through an AI camera or an infrared (IR) camera.

[0061] The communication unit (120) may include a communication interface for transmitting sensor data and image data collected from the acquisition unit (110) to an information collection device. Specifically, the communication unit (120) may include a wired communication interface based on an industrial serial communication method (e.g., RS485) or a short-range wired communication unit based on Ethernet to perform communication in a closed network environment inside an electrical room.

[0062] The communication unit (120) can packetize sensor data and image data transmitted from the acquisition unit (110) according to a predefined communication protocol and transmit them to an information collection device.

[0064] The control unit (130) may include a processor for controlling the overall operation of the monitoring device (100). Specifically, the control unit (130) may control the collection cycle and data sampling interval of sensor data and image data acquired by the acquisition unit (110), and manage the operation status of the acquisition unit (110) and the communication unit (120) so that the communication unit (120) transmits the sensor data and image data to an information collection device.

[0065] In addition, the control unit (130) can comprehensively control the operation of the entire monitoring device so that the display unit (140) displays the safety level received from the control server.

[0067] The display unit (140) may include a visual output device such as an LED indicator, an LCD panel, or a warning light, and may display a safety level (e.g., safe, caution, danger, etc.) received from a control server through the output device. For example, the display unit (140) may display the safety level along with a color or pattern to intuitively indicate whether the area is accessible or requires caution.

[0069] FIG. 3 is a block diagram briefly illustrating the configuration of an information collection device according to one embodiment of the present application. Referring to FIG. 3, the information collection device (200) may include a communication unit (210), a control unit (220), and a data integration unit (230).

[0071] The communication unit (210) may include various communication interfaces for receiving sensor data of the monitoring device and status signals of the portable authentication terminal, and for transmitting data to the control server. Specifically, the communication unit (210) may include a sensor signal input unit (211), a status signal input unit (213), and a control server communication unit (215).

[0072] The sensor signal input unit (211) may include an interface for receiving sensor signals transmitted from a plurality of monitoring devices (100). For example, the sensor signal input unit (211) may include an RS485-based wired communication port, a digital input channel, or an analog input channel, and may receive measurement values ​​from environmental sensors such as temperature, humidity, leakage current, flooding, gas concentration, and dust amount.

[0073] The status signal input unit (213) may include a BLE-based short-range wireless receiver and can receive status signals (e.g., occupancy status, location information, emergency button input, etc.) broadcast by the portable authentication terminal (300) according to a set period. The status signal input unit (213) can receive status information of the inspector's portable authentication terminal (300) broadcast from various places in the electrical room or inspection area.

[0074] The control server communication unit (215) may include a communication interface for transmitting sensor signals and status signals received from the information collection device to the control server. For example, the control server communication unit (215) may include an internal closed network communication module based on Ethernet or RS485 and may transmit structured data packets generated by the data integration unit (230) to the control server. Additionally, it may receive control commands from the control server.

[0076] The control unit (220) can control the overall operation of the information collection device (200), including the processor. Specifically, the control unit (220) manages the order of operations so that data transmitted from the sensor signal input unit (211) and the status signal input unit (213) is processed normally in the data integration unit (230), and can control the timing and priority of data transmission to be sent to the server through the control server communication unit (215).

[0077] In addition, the control unit (220) can perform various control functions for the operation of the information collection device, such as detecting data errors, verifying terminal authentication, and processing retransmission requests from the control server.

[0079] The data integration unit (230) can convert and integrate data received from the information collection device (200) into a form suitable for analysis by the control server (400). The data integration unit (230) can convert sensor data transmitted from the sensor signal input unit (211) and the status signal of the portable authentication terminal (300) transmitted from the status signal input unit (213) into a single format data packet, and can perform timestamp assignment, preprocessing, filtering, or event-based data classification. The integrated data can be transmitted to the control server (400).

[0081] FIG. 4 is a block diagram briefly illustrating the configuration of a portable authentication terminal according to one embodiment of the present application. Referring to FIG. 4, the portable authentication terminal (300) may include a sensor unit (310), a communication unit (320), an input unit (330), a control unit (340), and a display unit (350).

[0083] The sensor unit (310) may include one or more sensors for detecting the user's state or movement. For example, the sensor unit (310) may include an accelerometer for determining whether the user has fallen or is moving, or a gyroscope for detecting direction and rotation information.

[0084] The sensor unit (310) can obtain data to determine whether a dangerous situation, such as a fall, has occurred while the manager is working inside the electrical room.

[0086] The communication unit (320) can perform a short-range wireless communication function to transmit status signals of a portable authentication terminal to the outside. Specifically, the communication unit (320) may include a BLE (Bluetooth Low Energy) transmission module to periodically broadcast status signals of the terminal (e.g., terminal ID, occupancy status, emergency status, battery status, etc.). The broadcasted status signals can be received by information collection devices installed throughout the electrical room and used to determine the manager's location or safety status.

[0088] The input unit (330) may include an operating unit for an administrator to manually report an emergency or dangerous situation. For example, the input unit (330) may include a physical switch such as an emergency button, and when the administrator presses the button, the control unit (340) may broadcast the corresponding status through the communication unit (320).

[0090] The control unit (340) can control the overall operation of the portable authentication terminal (300), including a processor. Specifically, the control unit (340) can perform roles such as analyzing acceleration data transmitted from the sensor unit (310) to determine whether a fall has occurred, detecting button input from the input unit (330) to generate an emergency signal, controlling the broadcasting of data representing the state of the terminal through the communication unit (320), and controlling the operation of the display unit (350).

[0091] The control unit (340) controls the portable authentication terminal to broadcast a status signal only during the authentication period, and can release the authentication status according to the elapsed time of a preset time or the condition of completion of inspection. In addition, the control unit (340) can perform a power management function of the terminal to adjust the communication cycle, etc., according to the low-power mode or battery status.

[0093] The display unit (350) may include a display device for visually providing the user with the operating status of the portable authentication terminal. For example, the display unit (350) may include a status LED indicating that the terminal is operating normally, a warning LED that flashes when an emergency button is pressed, or an IR LED for identification by an AI camera. The display unit (350) may intuitively display the operating status or emergency status of the terminal according to the control of the control unit (340).

[0094] Additionally, the display unit (350) can indicate whether entry to a work area determined by the control server is possible. For example, in the event of an emergency, the control unit (350) can display an indication that entry to the work area is not possible, and in the event of a safe situation, it can display an indication that entry is possible.

[0095] Additionally, the display unit (350) can display work sequence guidance information provided from the control server or the control unit (340). For example, the display unit (350) can visually output information such as the work sequence to be performed by the inspector (e.g., "Inspect electrical room 1, then move to electrical room 2") or whether the inspection of each electrical room is completed. Accordingly, the inspector can be guided to move efficiently along the inspection route within the building.

[0097] FIG. 5 is a block diagram briefly illustrating the configuration of a control server according to one embodiment of the present application. Referring to FIG. 5, the control server (400) may include a communication unit (410), a control unit (420), a safety judgment unit (430), and a storage unit (440).

[0099] The communication unit (410) can receive sensor data and status signals from a plurality of information collection devices and a portable authentication terminal, and perform a communication function to transmit the judgment results of the control server to the monitoring device of each zone. In addition, the communication unit (410) may further include a communication function with an external device or external server linked to the present system. For example, the communication unit (410) may further include a network interface for data linkage with a management system, a building integrated control system (BAS), or a cloud-based server, and can transmit information such as risk occurrence history, inspector authentication information, or environmental data to an external device.

[0100] The communication unit (410) can operate by separating communication with an information collection device and a monitoring device through an internal closed network from communication with an external device through an external network, thereby enabling safety-related data to be processed stably.

[0102] The control unit (420) can control the flow of data and the order of operations processed within the control server, including the processor. Specifically, the control unit (420) can adjust the data received through the communication unit (410) so that it is delivered to the safety judgment unit (430) at an appropriate time, and can control the transmission of the safety level to be provided to the monitoring device through the communication unit (410) according to the analysis result of the safety judgment unit (430).

[0103] In addition, the control unit (420) can periodically update the status of each zone and perform system operation logic such as the inspector's authentication status, inspection time management, and alarm generation conditions.

[0105] The safety judgment unit (430) can determine the safety level of each zone (e.g., electrical room 1, electrical room 2, etc.) by analyzing various data received from the information collection device. Specifically, the safety judgment unit (430) can determine whether a dangerous situation may occur in the zone by combining environmental sensor data, status signals of portable authentication terminals, event information of AI cameras, etc.

[0106] The safety judgment unit (430) can first determine whether environmental sensor data, such as temperature, humidity, leakage, flooding, and gas concentration, exceeds preset reference values. For example, if the humidity or flooding sensor value of a specific electrical room rises rapidly, the area can be determined to be in a caution state or a danger state, and if an abnormal value is detected in the leakage sensor or carbon monoxide sensor, it can be immediately determined to be in a danger state. The safety judgment unit (430) can determine the area as an inaccessible zone if it corresponds to a caution state or a danger state, and determine the area as an accessible zone if it does not correspond to a caution state or a danger state.

[0107] The safety judgment unit (430) can determine the location and duration of stay of an inspector based on status signals periodically received from a portable authentication terminal. Specifically, the safety judgment unit (430) can determine whether an inspector is staying in a specific area (electrical room) longer than the standard time by comparing the signal from the same terminal received continuously for a long time in a specific electrical room with a preset stay limit time. If an inspector stays in a specific electrical room for longer than the set time, the safety judgment unit (430) can determine this as a stay-based risk situation.

[0108] Additionally, the safety judgment unit (430) may also determine the condition of the inspector using the time taken to move between zones (electrical rooms). For example, if the time taken for the inspector to move from receiving the last condition signal in electrical room 1 to receiving the first condition signal in electrical room 2 is longer than a preset time (i.e., if it is determined that an excessively long time has been taken compared to the actual distance traveled), the safety judgment unit (430) may determine that the inspector is in a dangerous state by determining that there is a possibility that the inspector has been in an abnormal situation (e.g., falling, decreased consciousness, etc.) while moving. This movement-based judgment function is designed to be suitable for an actual operating environment where the inspector moves sequentially between electrical rooms to perform work.

[0109] In addition, when the safety judgment unit (430) receives a fall event transmitted from the AI ​​camera or a no-movement event indicating a state of no movement for a long time, it can immediately determine the area to be in a dangerous state regardless of environmental sensor data or the time of stay of the terminal. The safety judgment unit (430) can perform a comprehensive risk judgment based on location information based on the AI ​​camera event, sensor data, and the status signal of the portable authentication terminal.

[0110] In this way, the safety judgment unit (430) can determine the safety level of each zone as safe, caution, or danger based on environmental changes, the location and stay status of the inspector, movement patterns between zones, and AI-based risk events, and provide the determined safety level to the monitoring device through the control unit (420).

[0112] The storage unit (440) may include a memory or a database for storing various data processed by the control server. The storage unit (440) may store information such as real-time sensor data, terminal status signals, AI camera events, safety judgment results, and alarm occurrence history.

[0114] FIG. 6 is a flowchart illustrating a method for managing safety by monitoring a safety state according to an embodiment of the present application. The operations in FIG. 6 are not limited in order, and additional operations may be performed between two adjacent operations. Furthermore, at least some of the operations in FIG. 6 may be omitted.

[0115] FIG. 6 will be explained in more detail with reference to FIG. 7 and FIG. 8. FIG. 7 is a drawing for explaining a method of managing safety by monitoring a safety state according to one embodiment of the present application. FIG. 8 is a drawing for explaining a method of displaying another safety state according to one embodiment of the present application.

[0117] Referring to FIG. 6, a monitoring device (100) can acquire sensor data (S1000). The monitoring device (100) can acquire sensor data through a temperature sensor, humidity sensor, leakage detection sensor, flood detection sensor, dust sensor, oxygen concentration sensor, carbon monoxide concentration sensor, AI camera, etc., placed in an electrical room or inspection area. At this time, the monitoring device (100) may acquire sensor data at regular intervals, or immediately transmit it to an information collection device (200) when an event such as a leakage or flood occurs. In addition, the monitoring device (100) may acquire information regarding the presence of a person, whether a fall has occurred, or abnormal movement through an AI camera.

[0118] A monitoring device (100) may be placed in each of a plurality of zones. For example, as shown in FIG. 7, a first monitoring device may be placed in electrical room 1, a second monitoring device in electrical room 2, and a third monitoring device in machine room 1, so that sensor data of each zone, such as temperature, humidity, leakage current, flooding, gas concentration, amount of dust, and AI camera images, may be independently acquired. Each monitoring device may have different sensors and cameras depending on the characteristics of the zone in which it is placed, and the threshold values ​​of the sensors for determining the risk level may also be different.

[0119] In this way, the monitoring devices are distributed in zone units, and each monitoring device can independently transmit sensor data acquired through its own sensor to an information collection device corresponding to the monitoring device.

[0121] The information collection device (200) can collect acquired sensor data and transmit it to the control server (S2000). Specifically, the information collection device (200) can receive sensor signals from the monitoring device (100) via wired communication (RS485, Ethernet, etc.) and can receive data such as temperature, humidity, leakage, flooding, oxygen and carbon monoxide concentrations, dust amount, and AI camera events transmitted through the sensor signal input unit.

[0122] Information collection devices (200) may be placed in each zone. For example, as shown in FIG. 7, a first information collection device placed in electrical room 1 may receive sensor data from a first monitoring device, a second information collection device placed in electrical room 2 may receive sensor data from a second monitoring device, and a third information collection device placed in machine room 1 may receive sensor data from a third monitoring device. Each information collection device (200) may packetize the sensor data of the corresponding zone along with a timestamp or zone identifier and transmit it to a control server.

[0123] In this way, the information collection device can operate so that the environmental status of each zone can be centrally managed by independently collecting data from multiple zones and reporting it to the control server (400) in real time or at a set interval.

[0125] A portable authentication terminal (300) can transmit a status signal (S3000). The portable authentication terminal (300) can periodically transmit information such as a terminal unique identifier, the authentication status of the inspector, motion-based status information, whether an emergency button is pressed, and battery status using a BLE (Bluetooth Low Energy) based broadcast method. When an inspector enters a management area while the authentication status is active, the portable authentication terminal (300) can broadcast the status signal only for a set period, and can be controlled so that the broadcast is stopped when the authentication period expires.

[0126] Additionally, the portable authentication terminal (300) can receive and display work sequence information, such as an inspector moving from electrical room 1 to electrical room 2, on the display unit, and can immediately transmit a status signal including an emergency state if a fall or no movement for a long time is detected during movement.

[0128] An information collection device (200) can receive a status signal and transmit it to a control server (400) (S4000). Specifically, the information collection device (200) includes a status signal input unit that detects BLE signals, and can receive a status signal from a portable authentication terminal (300) transmitted from each zone. For example, a first information collection device placed in electrical room 1 can receive a status signal from a portable authentication terminal of an inspector moving near electrical room 1, and a second information collection device placed in electrical room 2 can receive a status signal transmitted near electrical room 2. The information collection device (200) can transmit the received status signal along with the corresponding zone information to the control server, and accordingly, the control server (400) can identify the inspector's current location or movement path. In addition, if the inspector's movement between electrical rooms is delayed for a long time, the information is transmitted to the control server so that it can be used as a basis for future risk assessment.

[0130] A control server (400) can determine a safety level based on received sensor data and provide the determined safety level to a monitoring device (100) (S5000). Specifically, the control server (400) can determine the safety level of each zone as safe, caution, or danger by comprehensively analyzing whether there is an abnormality in the sensor data (whether it exceeds a threshold value), the time spent in each zone by the portable authentication terminal, whether the time of movement between electrical rooms exceeds a preset time, and events such as a fall or no movement through an AI camera. For example, if the time taken for an inspector to move from electrical room 1 to electrical room 2 exceeds a preset time, the control server (100) can determine that an abnormal situation occurred during the movement and classify the inspector as being in a dangerous state. The determined safety level can be provided to the corresponding monitoring device (100) via a communication unit (410). The monitoring device (100) can visually indicate whether the zone is in a safe state, a situation requiring caution, or a dangerous situation requiring immediate response. For example, as shown in FIG. 8, the monitoring device (100) can display the safety status by zone and by risk item. Additionally, the portable authentication terminal (300) can also display monitoring results such as those in FIG. 8.

[0132] According to one embodiment of the present invention, sensor data from each zone and status information of the inspector can be collected in real time, which has the advantage of enabling more precise safety management.

[0134] The features, structures, effects, etc. described in the embodiments above are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, etc. exemplified in each embodiment may be combined or modified and implemented in other embodiments by a person skilled in the art to which the embodiments belong. Accordingly, details regarding such combinations and modifications should be interpreted as being included within the scope of the present invention.

[0135] Furthermore, although the embodiments have been described above, this is merely illustrative and does not limit the invention. Those skilled in the art will understand that various modifications and applications not exemplified above are possible within the scope of the essential characteristics of the embodiments. In other words, each component specifically shown in the embodiments may be modified and implemented. Differences related to such modifications and applications should be interpreted as being included within the scope of the invention as defined in the appended claims. Explanation of the symbols

[0137] 100: Monitoring device 200: Information gathering device 300: Portable authentication terminal 400: Control Server 500: External device

Claims

Claim 1 A safety management system for monitoring a safety status comprises: a monitoring device that acquires sensor data and displays a safety level; an information collection device that collects the acquired sensor data and transmits it to a control server; a portable authentication terminal that broadcasts a status signal via BLE according to a set period; and a control server that determines a safety level based on sensor data received from the information collection device and provides the determined safety level to the monitoring device; wherein a first information collection device included in the information collection device receives the status signal and transmits the status signal to the control server; the control server determines the location of the portable authentication terminal as a first zone corresponding to the first information collection device based on the first information collection device that transmitted the status signal, and determines a dangerous state if the portable authentication terminal exists in the first zone for a preset time exceeding that time; and the portable authentication terminal broadcasts a status signal during the period in which the portable authentication terminal is authenticated, and the authentication status is released according to the conditions of elapsed authentication time or completion of inspection. Claim 2 A safety management system according to claim 1, wherein the monitoring device comprises: an acquisition unit including a plurality of sensors that acquire sensor data and transmit it to the information collection device; and a display unit that displays a safety level received from the control server. Claim 3 In paragraph 2, the plurality of sensors include a temperature sensor, a humidity sensor, a leakage detection sensor, a flood detection sensor, a dust sensor, an oxygen concentration sensor, a carbon monoxide concentration sensor, and an AI camera in a safety management system. Claim 4 In paragraph 2, the information collection device comprises: a sensor signal input unit for receiving sensor data from the plurality of sensors; a status signal input unit for receiving the status signal from the portable authentication terminal; and a control server communication unit for transmitting data to the control server; thereby forming a safety management system. Claim 5 A safety management system according to claim 1, wherein the monitoring device comprises: a first monitoring device for acquiring first sensor data corresponding to the first zone; and a second monitoring device for acquiring second sensor data corresponding to the second zone. Claim 6 In claim 5, the safety management system comprises: a first information collecting device that collects the first sensor data and transmits it to the control server; and a second information collecting device that collects the second sensor data and transmits it to the control server. Claim 7 In claim 6, the control server periodically receives a status signal of the portable authentication terminal from the first information collection device and determines that the portable authentication terminal is present in the first zone, and if the portable authentication terminal is present in the first zone for a period exceeding a preset time, the safety management system determines that it is in a dangerous state. Claim 8 delete Claim 9 A safety management system according to claim 1, wherein the monitoring device, the information collection device, and the control server communicate with each other through an independent internal communication network separated from an external network. Claim 10 A method for monitoring a safety status comprises: a step in which a monitoring device acquires sensor data; a step in which an information collection device collects the acquired sensor data and transmits it to a control server; a step in which a portable authentication terminal broadcasts a status signal via BLE according to a set period; a step in which a first information collection device included in the information collection device receives the status signal and transmits it to the control server; a step in which the control server determines a safety level based on the received sensor data and provides the determined safety level to the monitoring device, and determines the location of the portable authentication terminal as a first zone corresponding to the first information collection device based on the first information collection device that transmitted the status signal, and determines a dangerous state if the portable authentication terminal exists in the first zone for a period exceeding a preset time; and a step in which the monitoring device displays the safety level; wherein the step in which the portable authentication terminal broadcasts a status signal via BLE according to a set period comprises: a step in which the portable authentication terminal broadcasts the status signal during the period of authentication; and a step in which the authentication status is released according to the condition of authentication time elapsed or inspection completed.

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