Plant safety management system

Abstract

One embodiment of the present invention provides a plant safety management system comprising a monitoring device including a storage unit for storing hazardous materials used in a plant, a detection unit for detecting the type and amount of hazardous materials received into the storage unit, a calculation unit for calculating the inventory amount of hazardous materials stored in the storage unit based on the detection result of the detection unit, and a judgment unit for determining the risk level of the plant using the calculation result of the calculation unit.

Description

Technology Field

[0001] The present invention relates to a safety management system, and more specifically, to a plant safety management system capable of managing hazardous material inventory. Background Technology

[0002] With the number of casualties and fatalities caused by industrial accidents increasing in sectors such as manufacturing, the importance of safety management systems for preventing industrial accidents is growing. In particular, accidents caused by hazardous materials occur frequently in fields utilizing various types of hazardous substances, such as petrochemical plants, gasification plants, and power plants. Consequently, there is an increasing need for plant management systems capable of managing plant safety by measuring the incoming and outgoing quantities of hazardous materials in real time and determining inventory levels. The problem to be solved

[0003] The technical problem that the present invention aims to solve is to provide a plant safety management system capable of performing safety management through inventory management of hazardous materials used in a plant.

[0004] The technical problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which the present invention belongs from the description below. means of solving the problem

[0005] To achieve the above technical objective, a plant safety management system according to one embodiment of the present invention may include a monitoring device comprising: a storage unit in which hazardous materials used in a plant are stored; a detection unit that detects the type and quantity of the hazardous materials received into the storage unit; a calculation unit that calculates the inventory quantity of the hazardous materials stored in the storage unit based on the detection result of the detection unit; and a judgment unit that determines the risk level of the plant using the calculation result of the calculation unit.

[0006] In an embodiment of the present invention, the detection unit further detects the type and quantity of the hazardous material released from the storage unit, wherein the hazardous material may be received and released through a single transport line.

[0007] In an embodiment of the present invention, the hazardous material is provided in a plurality of different types, and the detection unit can detect the incoming and outgoing quantities for each of the plurality of hazardous materials.

[0008] In an embodiment of the present invention, the calculation unit can calculate the inventory amount of the hazardous material stored in the storage unit using the incoming and outgoing amounts of the hazardous material.

[0009] In an embodiment of the present invention, the judgment unit can determine the plant risk level by comparing the type of the detected hazardous substance and the calculated inventory amount of the hazardous substance with a preset judgment criterion.

[0010] In an embodiment of the present invention, the preset judgment criteria include a standard inventory value for each type of hazardous material, and the judgment unit can determine the risk level of the plant by comparing the standard inventory value corresponding to the identified type of hazardous material with the calculated inventory amount of the hazardous material after identifying the type of hazardous material being received.

[0011] In an embodiment of the present invention, the judgment unit can determine the time of receipt of the hazardous material and, based on whether a preset period has elapsed since the time of receipt, decide to dispose of the hazardous material stored in the storage unit.

[0012] In an embodiment of the present invention, the judgment unit can determine whether restocking of the hazardous material is necessary based on the calculated inventory amount.

[0013] In an embodiment of the present invention, the detection unit is equipped with a weight sensor, and the weight sensor is positioned on the single transport line to measure the weight of the hazardous material transported into the storage unit and the weight of the hazardous material discharged from the storage unit, respectively.

[0014] In an embodiment of the present invention, the detection unit is equipped with a scanning unit, and the scanning unit scans a packaging container containing the hazardous substance to detect the type of hazardous substance and the quantity of the packaging container received and shipped. Effects of the invention

[0015] The plant safety management system according to the embodiments of the present invention, as described above, can determine the inventory quantity of hazardous materials by type in real time by measuring the weight of hazardous materials entering and leaving a storage unit provided inside or outside the plant. In addition, by comprehensively utilizing the inventory quantity of hazardous materials and the risk level of each type of hazardous material, the risk grade of the plant is evaluated, and by making this verifiable by workers and managers working at the plant, efficient safety management of the plant can be performed.

[0016] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the composition of the invention described in the description or claims of the present invention. Brief explanation of the drawing

[0017] FIG. 1 briefly illustrates a plant safety management system according to one embodiment of the present invention. FIG. 2 illustrates the measurement of the incoming and outgoing quantities of hazardous materials during incoming and outgoing shipments according to one embodiment of the present invention. FIG. 3 is a flowchart illustrating a plant safety management method by a plant safety management system according to one embodiment of the present invention. Figure 4 is a flowchart illustrating the plant safety management method of Figure 3 in more detail. Specific details for implementing the invention

[0018] The present invention will be described below with reference to the attached drawings. However, the present invention may be implemented in various different forms and is therefore not limited to the embodiments described herein. Furthermore, in order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification have been given similar reference numerals.

[0019] Throughout the specification, when it is stated that a part is "connected (connected, in contact, combined)" with another part, this includes not only cases where they are "directly connected," but also cases where they are "indirectly connected" with other members interposed between them. Furthermore, when it is stated that a part "includes" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but rather allows for the inclusion of additional components.

[0020] The terms used herein are merely for describing specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0021] Embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0022] FIG. 1 briefly illustrates a plant safety management system according to one embodiment of the present invention. FIG. 2 illustrates the measurement of the incoming and outgoing quantities of hazardous materials during incoming and outgoing shipments according to one embodiment of the present invention.

[0023] Referring to FIGS. 1 to 3, the plant safety management system (10) may be a system for managing the safety of a plant (P) in which work is performed using a hazardous substance (D). Here, the hazardous substance (D) may be various types of hazardous substances (D) used in, for example, petrochemical plants, gasification plants, or power plants. At this time, the plant safety management system (10) may include a storage unit (100), a detection unit (200), and a monitoring device (300).

[0024] The storage unit (100) may be a warehouse for storing hazardous materials (D) used in the plant (P). The storage unit (100) may be provided inside the plant (P) or outside the plant (P), but for convenience of explanation, the following description will focus on an embodiment in which the storage unit (100) is placed inside the plant (P).

[0025] The storage unit (100) can store multiple hazardous substances (D). More specifically, multiple hazardous substances (D) of the same type can be stored inside the storage unit (100). Additionally, the storage unit (100) may be provided in multiple units, and each of the multiple storage units (100) may store different types of hazardous substances (D). Furthermore, it is obvious that the interior of a single storage unit (100) may be divided into multiple areas to store various types of hazardous substances (D).

[0026] The storage unit (100) may be equipped with a transfer unit (TU) for transferring hazardous materials (D) transported to the plant (P) via a means of transport such as a vehicle into the interior of the storage unit (100). In one embodiment, the transfer unit (TU) may be composed of a conveyor. In this case, one end of the transfer unit (TU) may be positioned outside the plant (P), and the other end of the transfer unit (TU) may be extended toward the storage unit (100) and positioned inside the storage unit (100).

[0027] Additionally, hazardous material (D) released from the storage unit (100) can be transported through a transport unit (TU). In one embodiment, the storage unit (100) may have one transport unit (TU) installed, and hazardous material (D) may be received and released through this single transport unit (TU). Accordingly, hazardous material (D) may be received and released through a single transport line. Meanwhile, if multiple storage units (100) are provided, multiple transport units (TU) may also be provided to correspond thereto.

[0028] The detection unit (200) can detect the type and amount of hazardous material (D) being transported to the storage unit (100). More specifically, the detection unit (200) can be positioned at the transfer unit (TU) or at a location adjacent to the transfer unit (TU) to detect the type and weight of the hazardous material (D). At this time, the detection unit (200) may be equipped with a weight sensor (210) and a scanning unit (220).

[0029] In one embodiment, the weight sensor (210) may be placed in the transport unit (TU). More specifically, the weight sensor (210) may be placed at the top of the transport unit (TU). In this case, the weight sensor (210) can measure the weight of the hazardous material (D) that is transported through the transport unit (TU) and received into the storage unit (100). For example, the weight sensor (210) may be a load cell.

[0030] Additionally, the weight sensor (210) can measure the weight of the hazardous material (D) being discharged from the storage unit (100). More specifically, as described above, since the storage unit (100) receives and discharges the hazardous material (D) through a single transport line, the hazardous material (D) that was received and stored in the storage unit (100) through the transport unit (TU) can be discharged through the same transport unit (TU). During this discharge, the weight sensor (210) can measure the weight of the discharged hazardous material (D).

[0031] The weight sensor (210) can transmit the measured weight value to the monitoring device (300). More specifically, the weight sensor (210) can generate a first measurement signal including a result value (hereinafter, first weight measurement value) of measuring the weight of the incoming hazardous material (D) and transmit it to the monitoring device (300). Additionally, the weight sensor (210) can generate a second measurement signal including a result value (hereinafter, second weight measurement value) of measuring the weight of the outgoing hazardous material (D) and transmit it to the monitoring device (300).

[0032] The scanning unit (220) can detect the type of hazardous material (D) that is received into the storage unit (100) or released from the storage unit (100). More specifically, the scanning unit (220) can detect the type of hazardous material (D) that is received into the storage unit (100) or released from the storage unit (100) by scanning the hazardous material (D) being transported through the transfer unit (TU). At this time, the scanning unit (220) can identify the type of hazardous material (D) by scanning the barcode, name, serial number, etc., written on the packaging container containing the hazardous material (D). The scanning unit (220) can generate a scan signal including a scan result value and transmit it to the monitoring device (300).

[0033] The monitoring device (300) can calculate the inventory amount of hazardous material (D) in the storage unit (100) and determine the risk level of the plant (P) based on the calculated inventory amount. At this time, the monitoring device (300) may include one or more processors (not shown). The monitoring device (300) may be operated in a form included in a hardware device such as a microprocessor or a general-purpose computer system.

[0034] Here, 'processor' may refer to a data processing device embedded in hardware having a physically structured circuit to perform functions expressed, for example, by code or instructions included in a program. Examples of such data processing devices embedded in hardware may include microprocessors, central processing units (CPUs), processor cores, multiprocessors, application-specific integrated circuits (ASICs), and field programmable gate arrays (FPGAs), but the scope of the present invention is not limited thereto. In this case, the monitoring device (300) may include a calculation unit (310) and a judgment unit (320). Additionally, the monitoring device (300) may further include a storage unit (330).

[0035] The calculation unit (310) can calculate the stock amount of hazardous substance (D) stored in the storage unit (100) based on the detection result of the detection unit (200). More specifically, the calculation unit (310) can receive a first measurement signal from the detection unit (200) via a communication network (N). Subsequently, when the second measurement signal is received from the detection unit (200), the calculation unit (310) can calculate the stock amount of hazardous substance (D) remaining in the storage unit (100) by calculating the difference between the first weight measurement value included in the first measurement signal and the second weight measurement value included in the second measurement signal.

[0036] In another embodiment, the calculation unit (310) can calculate the inventory amount of hazardous material (D) based on a scan signal. In this case, the scan signal may include information regarding the type of hazardous material (D) entering the storage unit (100), the capacity of the packaging container in which the hazardous material (D) is packaged, and the quantity of packaging containers entering the storage unit (100). In this case, the calculation unit (310) can calculate the amount of hazardous material (D) entering by multiplying the quantity of packaging containers entering the storage unit (100) by the capacity of the packaging containers. Similarly, the calculation unit (310) can calculate the amount of hazardous material (D) being released from the storage unit (100) using a scan signal for the hazardous material (D) being released, and then calculate the inventory amount of hazardous material (D) through the difference between the amount of incoming and outgoing quantities.

[0037] The judgment unit (320) can evaluate the risk level of the plant (P) using the inventory calculation result calculated by the calculation unit (310). The judgment unit (320) can pre-set a judgment criterion (hereinafter referred to as a pre-set judgment criterion) that serves as a standard for determining the risk level. At this time, the pre-set judgment criterion may include a 'risk level list' created based on the risk levels of various types of hazardous substances (D) and 'inventory standard values' for each hazardous substance (D). Here, the risk levels of the hazardous substances (D) may be determined based on the flammability, combustibility, etc. of the hazardous substances. In addition, the risk level list may be created to be graded according to the risk levels of various hazardous substances (D).

[0038] More specifically, the judgment unit (320) can identify the type of incoming hazardous material (D) using a scan signal. At this time, the judgment unit (320) can identify the risk level of the incoming (or stored) hazardous material (D) by comparing the identified type of hazardous material (D) with a risk level list. For example, the risk level list may include various types of hazardous materials (D) with their risk levels classified as high, medium, or low. In this case, the judgment unit (320) can determine the risk level of the incoming (or stored) hazardous material (D) by matching the identified type of hazardous material (D) with the corresponding risk level.

[0039] The judgment unit (320) can determine the risk level of the plant (P) based on the inventory amount of the hazardous substance (D). In one embodiment, the judgment unit (320) can determine the risk level of the plant (P) by combining the risk level of the hazardous substance (D) determined as described above and the inventory amount of the hazardous substance (D). At this time, after determining the risk level of the hazardous substance (D), the judgment unit (320) can determine the risk level of the plant (P) by comparing the inventory amount of the hazardous substance (D) with the inventory reference value. In the following, the risk levels are described by classifying them into Grade A (i.e., dangerous state), Grade B (i.e., normal state), and Grade C (i.e., safe state) in order of the degree of danger of the plant (P), but the present invention is not limited thereto.

[0040] For example, the judgment unit (320) may determine the risk level of the plant (P) as Grade A if the risk level of the identified hazardous substance (D) is “high” and the inventory amount of the hazardous substance (D) is greater than or equal to the inventory standard value. As another example, the judgment unit (320) may determine the risk level of the plant (P) as Grade B if the risk level of the identified hazardous substance (D) is “high” and the inventory amount of the hazardous substance (D) is less than the inventory standard value. As yet another example, the judgment unit (320) may determine the risk level of the plant (P) as Grade B if the risk level of the identified hazardous substance (D) is “medium” and the inventory amount of the hazardous substance (D) is greater than or equal to the inventory standard value. As yet another example, the judgment unit (320) may determine the risk level of the plant (P) as Grade C if the risk level of the identified hazardous substance (D) is “medium” and the inventory amount of the hazardous substance (D) is less than the inventory standard value. Meanwhile, the judgment unit (320) can determine the risk level of the plant (P) as Grade C regardless of the inventory amount when the risk level of the identified hazardous substance (D) is “low”.

[0041] The judgment unit (320) can determine the timing and quantity of restocking of hazardous material (D) based on the result of calculating the inventory quantity. At this time, the judgment unit (320) can pre-set a restocking standard value (a pre-set restocking standard value) that serves as a criterion for determining the necessity of restocking. In this case, the judgment unit (320) can determine whether restocking of hazardous material (D) is necessary by comparing the calculated inventory quantity of hazardous material (D) with the restocking standard value.

[0042] For example, the judgment unit (320) may determine that additional stocking of the hazardous substance (D) is necessary when the stock quantity of the hazardous substance (D) is less than the restocking threshold value. This determination of the need for restocking may be newly determined each time the hazardous substance (D) is released. Meanwhile, if various types of hazardous substances (D) are stored in the storage unit (100), the restocking threshold value may be set differently for each type of hazardous substance (D), and accordingly, the judgment unit (320) may determine the need for restocking for each type of hazardous substance (D).

[0043] The judgment unit (320) can determine whether to dispose of the hazardous substance (D) remaining in the storage unit (100). At this time, the judgment unit (320) can set a period (hereinafter referred to as a pre-set period) that serves as a standard for determining whether to dispose of the hazardous substance (D). Here, the pre-set period may be set based on the type of hazardous substance (D) and the storage period, etc.

[0044] More specifically, the judgment unit (320) can determine the time of entry and the time of exit of the hazardous substance (D) through the first measurement signal and the second measurement signal received from the detection unit (200). At this time, the judgment unit (320) can determine whether to dispose of the hazardous substance by calculating the period that has elapsed since the hazardous substance (D) was entered into the storage unit (100) based on the time of entry, and comparing it with a preset period. For example, if a preset period has elapsed while a hazardous substance (D) is stored in the storage unit (100), the judgment unit (320) may determine that the hazardous substance (D) is no longer usable and therefore needs to be disposed of.

[0045] The memory unit (330) can store the measurement results of the detection unit (200), the storage status of the hazardous substance (D) within the storage unit (100), and the judgment results determined by the judgment unit (320). More specifically, the memory unit (330) can store information regarding the type of hazardous substance (D) entering the storage unit (100), the time of entry (or time of re-entry), the amount of entry (or amount of re-entry), and the time of exit and the amount of exit in a time-series manner. In addition, the memory unit (330) can store information regarding the inventory amount of the hazardous substance (D) calculated or determined by the judgment unit (320) and the risk grade of the plant (P) in a time-series manner. Meanwhile, if various types of hazardous substances (D) are used in the plant (P), the above information can be stored by creating a database for each hazardous substance (D). In addition, if the plant (P) is equipped with multiple storage units (100), the above information can be stored in a database for each storage unit (100) and for each hazardous material (D).

[0046] The display unit (not shown) can display externally the storage status of hazardous substances (D) within the storage unit (100) based on the measurement result of the detection unit (200) described above. Additionally, the display unit can display externally the judgment result of the judgment unit (320) described above. Accordingly, the manager or operator of the plant safety management system (10) can check in real time information regarding the types of hazardous substances (D) stored inside the storage unit (100) and the inventory quantity by type, information regarding whether restocking is required for each hazardous substance (D), and information regarding the risk level of the plant (P).

[0047] The plant safety management system (10) can transmit detection information from the detection unit (200) as described above to the monitoring device (300) via a communication network (N). The plant safety management system (10) can transmit and receive information using, for example, wireless or wired communication methods. The communication method is not limited and may include, for example, communication methods utilizing mobile communication networks, wired internet, wireless internet, and broadcasting networks, as well as short-range wireless communication between devices. For example, the communication network (N) may include one or more arbitrary networks among networks such as PAN (personal area network), LAN (local area network), CAN (campus area network), MAN (metropolitan area network), WAN (wide area network), BBN (broadband network), and the Internet. Additionally, the communication network (N) may include one or more network topologies including bus networks, star networks, ring networks, mesh networks, star-bus networks, tree or hierarchical networks, but is not limited thereto.

[0048] FIG. 3 is a flowchart illustrating a plant safety management method by a plant safety management system according to an embodiment of the present invention. FIG. 4 is a flowchart showing the plant safety management method of FIG. 3 in more detail.

[0049] Referring to FIGS. 3 and FIGS. 4, the plant safety management method (S10) of the plant safety management system (10) may be as follows.

[0050] First, the detection unit (200) can detect the type and amount of hazardous material (D) being transported to the storage unit (100) (S100). Specifically, the weight sensor (210) is positioned in the transfer unit (TU) to measure the weight (i.e., amount of) of the hazardous material (D) entering the storage unit (100) through the transfer unit (TU). At this time, the scanning unit (220) is positioned in a location adjacent to the transfer unit (TU) to scan the outer surface of the packaging container containing the hazardous material (D) to detect the type and timing of the entry of the hazardous material (D), the capacity of the packaging container, and the quantity of the packaging container. A first measurement signal containing such detection results can be transmitted to the monitoring device (300).

[0051] Next, the detection unit (200) can detect the type and quantity of hazardous material (D) released from the storage unit (100) (S200). Specifically, the weight sensor (210) can measure the weight (i.e., quantity released) of the hazardous material (D) released from the storage unit (100) through the transfer unit (TU). Then, the scanning unit (220) can scan the outer surface of the packaging container containing the hazardous material (D) to detect the type and timing of the released hazardous material (D), the quantity of the released packaging container, etc. A second measurement signal containing such detection results can be transmitted to the monitoring device (300).

[0052] Next, the calculation unit (310) can calculate the inventory amount of hazardous material (D) remaining in the storage unit (100) using the detection result of the detection unit (200) (S300). Specifically, the calculation unit (310) can calculate the inventory amount of hazardous material (D) remaining in the storage unit (100) by using the difference between the 'incoming amount' included in the first measurement signal and the 'outgoing amount' included in the second measurement signal.

[0053] Next, the judgment unit (320) can determine the risk level of the plant (P) based on the calculated inventory amount of hazardous substance (D) (S400). At this time, the judgment unit (320) can determine the risk level of the plant (P) by comparing the calculated inventory amount of hazardous substance (D) with a pre-set judgment standard. More specifically, the judgment unit (320) can determine the risk level of the hazardous substance (D) after identifying the type of hazardous substance (D) being received and shipped through the detection unit (200) (S410). Then, the judgment unit (320) can determine the risk level of the plant (P) by comparing the inventory amount of hazardous substance (D) with an inventory standard value (S420).

[0054] Next, the judgment result of the judgment unit (320) and the storage status of the storage unit (100) can be displayed externally (S500). By using at least one of a display unit (not shown), a worker terminal (not shown), and a manager terminal (not shown), information regarding the risk level of the plant (P) and the type and inventory quantity of hazardous substances (D) stored in the storage unit (100) can be displayed externally in real time. In addition, if at least one of the risk level of the plant (P) and the type and inventory quantity of hazardous substances (D) stored in the storage unit (100) changes, the changed information is reflected so that the manager of the plant safety management system (10) and the worker in the plant (P) can check it in real time.

[0055] The plant safety management system (10) according to the embodiments of the present invention as described above can determine the inventory amount of hazardous materials (D) by type in real time by measuring the weight of hazardous materials (D) entering and exiting a storage unit (100) provided inside or outside the plant (P). In addition, by comprehensively utilizing the inventory amount of hazardous materials (D) and the risk level of each type of hazardous material (D), the risk level of the plant (P) is evaluated, and by making it possible for workers and managers working at the plant (P) to verify this, efficient safety management of the plant (P) can be performed.

[0056] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will understand that other specific forms can be easily modified without altering the technical spirit or essential features of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single unit may be implemented in a distributed manner, and components described as distributed may likewise be implemented in a combined form.

[0057] The scope of the present invention is defined by the claims set forth below, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts thereof should be interpreted as being included within the scope of the present invention. Explanation of the symbols

[0058] 10: Plant Safety Management System 100: Storage section 200: Detector 210: Weight sensor 220: Scan section 300: Monitoring device 310: Output section 320: Judgment Department 330: Memory section N: Communication network

Claims

Claim 1 A plant safety management system comprising: a storage unit in which hazardous materials used in a plant are stored; a detection unit for detecting the type and quantity of hazardous materials received into the storage unit; a calculation unit for calculating the inventory quantity of hazardous materials stored in the storage unit based on the detection result of the detection unit; and a judgment unit for determining the risk level of the plant using the calculation result of the calculation unit; wherein the judgment unit calculates the inventory quantity of hazardous materials by calculating the difference between a first weight measurement value of the weight of the incoming hazardous material and a second weight measurement value of the weight of the outgoing hazardous material, and determines the risk level of the plant based on the risk level determined according to the type of hazardous material and the calculated inventory quantity of hazardous materials, wherein after determining the risk level, the risk level of the plant is determined by comparing the calculated inventory quantity of hazardous materials with a preset inventory standard value, and the risk level is determined based on the flammability and combustibility of the hazardous material. Claim 2 A plant safety management system according to claim 1, wherein the detection unit further detects the type and quantity of the hazardous material released from the storage unit, and the hazardous material is received and released through a single transport line. Claim 3 In claim 2, the hazardous material is provided in multiple different types, and the detection unit detects the incoming and outgoing quantities for each of the multiple hazardous materials, in a plant safety management system. Claim 4 In claim 2, the calculation unit calculates the inventory amount of the hazardous material stored in the storage unit using the incoming and outgoing amounts of the hazardous material, in a plant safety management system. Claim 5 delete Claim 6 delete Claim 7 A plant safety management system according to claim 1, wherein the judgment unit determines the time of entry of the hazardous material and, based on whether a preset period has elapsed since the time of entry, determines the disposal of the hazardous material stored in the storage unit. Claim 8 In claim 1, the judgment unit determines whether restocking of the hazardous material is necessary based on the calculated inventory amount, in a plant safety management system. Claim 9 A plant safety management system according to claim 2, wherein the detection unit is equipped with a weight sensor, and the weight sensor is positioned on the single transport line to measure the weight of the hazardous material transported into the storage unit and the weight of the hazardous material discharged from the storage unit, respectively. Claim 10 A plant safety management system according to claim 1, wherein the detection unit comprises a scanning unit, and the scanning unit scans a packaging container containing the hazardous material to detect the type of the hazardous material and the quantity of the packaging container received and shipped.

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