KR102637504B1 - Safety management system for industrial sites - Google Patents

Abstract

The present invention collects and monitors the location information of workers and the status information of each industrial facility in real time, enabling rapid response to safety accidents, as well as dramatically reducing the amount of unnecessary data transmission, enabling real-time data processing, and enabling real-time data processing. This is about a safety management system for industrial sites that can dramatically solve the problem of not being able to provide safety management services due to battery discharge by preventing unnecessary power consumption of worker devices.

Description

Safety management system for industrial sites}

The present invention relates to a safety management system for industrial sites. In detail, it collects and monitors the location-information of workers and the status-information of each industrial facility in real time, enabling rapid response to safety accidents and reducing the amount of unnecessary data transmission. This is about a safety management system for industrial sites that can dramatically reduce data processing in real time and prevent unnecessary power consumption of worker devices owned by workers, thereby dramatically solving the problem of not being able to provide safety management services due to battery discharge. will be.

Typically, various medium and large-sized industrial facilities are installed at industrial sites, and these industrial facilities are operated by driving means such as motors and cylinders, and at the same time, they are exposed to various risk factors such as fire, falls, explosions, and collisions between heavy equipment and workers, so workers are exposed to them. When safety rules are not followed, safety accidents, such as injuries or serious casualties, occur frequently.

Accordingly, various efforts are being made to prevent safety accidents, but safety accidents constantly occur at construction sites due to various causes and reasons, regardless of the work subject.

In particular, as a limited number of managers manage safety accidents in a wide range of industrial sites, safety accidents are continuously increasing in various industrial sites.

Figure 1 is a configuration diagram showing a workplace safety management system using RFID disclosed in Domestic Patent No. 10-0779727 (title of the invention: Workplace safety management system and method using RFID).

The workplace safety management system 100 using RFID (hereinafter referred to as the prior art) of FIG. 1 includes an RFID tag 132 for identifying the location of a worker, and an RFID receiver 131 for receiving signals from the RFID tag 132. ), a CCTV (141) for acquiring images of the operating status of work machines, a speaker (142) installed in the hazardous area, a warning light (143) installed in the hazardous area, and a CCTV (141) , a workplace management computer 110 that is electrically connected to the speaker 142 and the warning light 143 and controls their operations under the control of the management server 120, an RFID receiver 131, and a workplace management computer 110. It includes a management server 120 that receives information from, controls and manages the operation of the RFID receiver 131 and the workplace management computer 110, monitors people entering the workplace, and manages their entry and exit.

The prior art (100) configured in this way provides the advantage of preventing safety accidents in the workplace by managing hazardous areas around work machines using an RFID system and fundamentally controlling access by visitors and unauthorized workers. .

However, since the prior art 100 uses the RFID tag 320 to track the location, it has the disadvantage that not only is it practically impossible to track the real-time location of the worker, but also the RFID tag consumes a lot of power.

In addition, the prior art 100 cannot obtain active danger signals from workers, so it has structural limitations that reduce safety accident prevention effectiveness and efficiency.

In addition, the prior art (100) has the disadvantage of not describing any technology or method for conveying this to the worker when predicting the risk to the worker, making it less effective in reducing safety accidents.

The present invention is intended to solve this problem. By collecting and monitoring the location information of workers and the status information of each industrial facility in real time, not only is it possible to respond quickly to safety accidents, but it is also possible to dramatically reduce the amount of unnecessary data transmission. This is to provide a safety management system for industrial sites that enables real-time processing of data and can dramatically solve the problem of not being able to provide safety management services due to battery discharge by preventing unnecessary power consumption of worker devices owned by workers. will be.

The solution of the present invention to solve the above problem is a safety management system for industrial sites for monitoring the location of workers and the status of equipment in an industrial site (S) including at least one industrial facility (M), including: a central monitoring server; BLE beacons that are installed at intervals in the industrial site (S) and transmit a beacon-signal to a node connected to a local communication network to detect the location of the connected node and then transmit location information to the node; It is carried by the worker and receives location information from adjacent BLE beacons among the BLE beacons through a short-distance communication module. If the current location (P) is within the preset setting range (A) based on the previous location, the location A worker device that does not transmit information to the outside, but transmits location information to the outside through a data communication module if it is not included in the setting range (A); A local server is connected to the worker device through a network and receives location information from the worker device, and transmits the received location information to the central monitoring server, wherein the central monitoring server monitors the worker through the local server. When the location information of the device is transmitted, the transmitted location information is stored and monitored. However, if the location information is not transmitted, the previous location is replaced with the current location and stored and monitored, and the worker device performs the short-range communication module and the data communication. A controller including a module; It includes a battery that supplies power to the controller, and the controller includes a memory in which a preset setting range (A) is stored; A location information acquisition module that controls the short-range communication module and acquires location information by linking with an adjacent BLE beacon; It is executed when location information is acquired by the location information acquisition module, and if the acquired current location (P) is included in the preset setting range (A) based on the preset reference position (P'), the location a data transmission determination module that determines not to transmit the information to the local server, but determines to transmit the location information to the local server if it is not within the setting range (A); It is executed when the data transmission determination module determines to transmit location information, resets the worker's current location (P) to the reference location (P'), and stores the reference location (P') in the memory. ') reset module; In the data transmission determination module, when it is decided to transmit the location information, the data communication module is controlled to transmit the location information to the local server, but when it is decided not to transmit the location information, the location information is not transmitted. It includes a location information transmission control module that terminates the operation without stopping, and the worker device does not transmit the worker's location information as is to the local server, but when the worker's current location (P) is outside the setting range (A) By transmitting only the data to the local server, unnecessary data transmission can be reduced and power consumption of the battery can be reduced at the same time.

In addition, in the present invention, when an unexpected situation occurs, the central monitoring server transmits unexpected confirmation data to the local server, and when the worker device receives unexpected confirmation data from the central monitoring server through the local server, it controls the controller. Accordingly, it is desirable to further include an alarm display means for displaying alarm information to the outside.

delete

In addition, in the present invention, location information for each of the areas (S') dividing the industrial site (S) into a plurality of areas (S') is preset and stored in the memory, and the data transmission determination module acquires the location information through the location information acquisition module. a data extraction module for extracting location information, location information and setting-range (A') information of each area (S') stored in the memory, and reference-position (P') data; After detecting the area (S') corresponding to the reference position (P') by referring to the reference position (P') extracted by the data extraction module and the location information of each area (S'), Referring to the setting-range (A') of each area (S'), detecting the setting-range (A') matching the detected area (S') and setting it based on the reference-position (P') -Reference-range detection module that detects the reference-range (A), which is the area to which the range (A') is applied; A position comparison module that compares the worker's current position (P) with the reference range (A) detected by the reference range detection module; In the position comparison module, if the current position (P) is not included in the reference range (A), it is determined that the worker has left the reference range (A), but the current position (P) is within the reference range (A). When included, a deviation determination module that determines that the worker has not deviated from the reference range (A); a data transmission decision module that is executed when the deviation determination module determines that the worker has deviated from the reference range (A) and determines to transmit location information to the local server; The deviation determination module is executed when it is determined that the operator has not deviated from the reference range (A), and preferably includes a data non-transmission decision module that determines not to transmit location information to the local server.

Additionally, in the present invention, the central monitoring server includes a DB server; By referring to the location information transmitted from the worker device through the local server, location log data is generated by matching the worker identification information, current location (P), and current time, and then stored in the DB server. wealth; A worker location tracking unit that tracks the worker's location through the worker's current location (P); A setting-range (A’) optimization unit that is executed at each preset cycle (T); and a control unit that transmits the setting-range (A') information of each area (S') for each worker optimized by the setting-range (A') optimization unit to the local server, wherein the local server is the central server. When receiving the setting-range (A') information of each area (S') for each worker from the monitoring server, it is desirable to transmit the setting-range (A') information of each area (S') to the corresponding worker device. .

In addition, in the present invention, the setting-range (A') optimization unit includes a worker location log data extraction module that extracts the location log data of each worker stored in the DB server for a preset period (T); The elapsed time for each area calculates the elapsed time (t), which is the time the worker stayed in each area (S'), by referring to the location log data of each worker extracted by the worker location log data extraction module. Calculation module; The elapsed time (t) of each area (S') of the worker calculated by the elapsed time calculation module for each area is the elapsed time by which it can be determined that the contractor has performed a certain amount of work in the area (S'). Comparison module that compares with a preset setting value (TH, Threshod), which means the minimum value; In the comparison module, 1) when an area (S') having an elapsed time (t) greater than the set value (TH) is detected, M areas (S') adjacent to the area (S') are grouped into area-groups. 2) an area-group setting module that sets the area (S') with an elapsed time (t) less than the set value (TH) as one area-group; A final elapsed time calculation module for each area-group that calculates the final elapsed time (T) by adding up the elapsed times of the areas (S') included in each area-group set by the area-group setting module 384. ; After referring to the final elapsed time (T) calculated by the final elapsed time calculation module for each area-group, the areas (S') belonging to the same area-group have the same final elapsed time (T), A sorting module that sorts the regions (S') according to the order from highest to lowest final elapsed time (T); It is desirable to include a setting-range (A) setting module for each area that sets the setting-range (A) of each area (S') to have an area proportional to the final elapsed time (T).

In addition, in the present invention, the elapsed time calculation module for each area refers to the time information included in the location log data, and assigns a greater weight as it is closer to the current time zone, but gives a smaller weight as it moves away from the current time zone, so that the elapsed time It is desirable to calculate (t).

In addition, in the present invention, the safety management system for industrial sites includes first, ..., N IoT sensors that are installed in the industrial equipment (M), measure preset parameters, and then transmit the measured sensing values to the local server. field; The local server includes a memory that stores sensing values received from the first,...,N IoT sensors; and a first,...,N IoT sensor operating unit that is executed every preset first cycle (T1), and the IoT sensor operating unit operates the first,...,N IoT sensors every first cycle (T1). A sensing-value collection module that collects sensing-values measured by sensors; First, ..., N sensing-values that analyze each of the sensing-values of the first, ..., N sensors collected by the sensing-value collection module and determine whether to transmit each sensing-value. Transmission determination modules; Among the first,...,N sensing values, collection data is generated by matching the sensing-values determined to transmit data by the first,...,N sensing-value transmission determination modules. It includes a generation module, and each of the first, ..., N sensing-value transmission determination modules includes a sensing-value extraction module that extracts the sensing-values of each IoT sensor during the first period (T1); A set quantity sensing-value extraction module for extracting first sensing-values of a set quantity (L) based on the latest among the sensing-values extracted by the sensing-value extraction module; For each of the sensing-values of the set quantity (L) extracted by the set quantity sensing-value extraction module, 1) If the value is higher than the previous cycle, '-100/L' is set as the state value (Va) of the cycle. 2) a status value granting module for each cycle that grants '+100/L' as the status value (Va) of the cycle if the value is lower than the previous cycle; a total state value calculation module that calculates a total state value (VA) by adding up the state values (Va) of each cycle calculated by the state value granting module for each cycle; A comparison module that compares the overall state value (VA) calculated by the overall state value calculation module with a preset normal range; In the comparison module, 1) if the overall state value (VA) is within the normal range, it is determined that the sensing-value is not valid data; 2) if the overall state value (VA) is outside the normal range, the sensing-value a judgment module that determines that this is valid data; If the determination module determines that 1) the sensing value is not valid data, it decides not to transmit the sensing value, and 2) if it determines the sensing value is valid data, it transmits the sensing value. It is desirable to include a sensing-value transmission decision module that determines.

In addition, in the present invention, the central monitoring server further includes a data restoration unit that analyzes the collected data transmitted from the local server and restores the missing data when missing data is detected, and the data restoration unit analyzes the collected data transmitted from the local server. A missingness determination module that determines whether missing sensing-values exist in the data; A sensing-value extraction module that is executed when the missingness determination module determines that a missing sensing-value exists and extracts previous sensing-values of the missing IoT sensor; Among the sensing-values extracted by the sensing-value extraction module, only the most recent m sensing-values are extracted, and then the extracted m sensing-values are used to obtain the difference-value of the sensing-values of adjacent periods (T). A difference-value calculation module for each cycle that calculates; a difference-value increase/decrease rate calculation module that calculates increase/decrease rates of adjacent difference-values using the difference-values calculated by the difference-value calculation module for each cycle; a restoration-value determination module that determines a restoration-value of the missing sensing-value by utilizing the difference-value increase/decrease rate calculated by the difference-value increase/decrease calculation module; It is preferable to include a missing data restoration module that restores missing data by replacing the missing sensing value with a restoration value determined by the restoration value determination module.

Additionally, in the present invention, the restoration-value determination module includes an increase/decrease rate input module that receives the difference-value increase/decrease rate calculated from the difference-value increase/decrease calculation module; By analyzing the increase/decrease rate data input by the increase/decrease input module, 1) if each increase rate is higher than the previous increase rate, the corresponding IoT sensor is judged to be in a 'continuous increase state', and 2) each increase rate is all higher than the previous increase rate. If it is less than that, the relevant IoT sensor (8) is judged to be in a ‘continuously decreasing state’. 3) If it is not included in both the ‘continuously increasing state’ and the ‘continuously decreasing state’, the relevant IoT sensor is judged to be in a ‘maintenance state’. module; A continuous increase state classification module that is executed when the analysis module determines that the increase/decrease rate is continuously increasing and classifies the corresponding IoT sensor as a ‘continuous increase state’; It is executed when the relevant IoT sensor is classified as a 'continuous increase state' by the continuous increase state classification module, and restores the missing sensing value by applying the increase/decrease rate of the previous cycle to the sensing value of the previous cycle. A first restoration-value calculation module that calculates; A continuous decrease state classification module that is executed when the analysis module determines that the increase and decrease rates are gradually decreasing and classifies the corresponding IoT sensor as a ‘continuous decrease state’; It is executed when the corresponding IoT sensor is classified as a 'continuous decrease state' by the continuous decrease state classification module, and calculates the restoration value of the missing sensing value by applying the previous increase/decrease rate to the sensing value of the previous cycle. Second restoration-value calculation module; A maintenance state classification module that is executed when the analysis module determines that the increase/decrease rates do not gradually increase or decrease, and classifies the corresponding IoT sensor as a ‘maintenance state’; It is executed when the corresponding IoT sensor is classified as ‘maintenance state’ by the maintenance state classification module, and preferably includes a third restoration-value calculation module that determines the sensing-value of the previous cycle as the restoration-value.

According to the present invention, which has the above problems and solutions, the location-information of workers and the status-information of each industrial facility are collected and monitored in real time, which not only enables rapid response to safety accidents, but also dramatically reduces the amount of unnecessary data transmission. Real-time data processing is possible, and it can dramatically solve the problem of not being able to provide safety management services due to battery discharge by preventing unnecessary power consumption of worker devices owned by workers.

Figure 1 is a configuration diagram showing a workplace safety management system using RFID disclosed in Domestic Patent No. 10-0779727 (title of the invention: Workplace safety management system and method using RFID).
Figure 2 is a configuration diagram showing a safety management system for industrial sites, which is an embodiment of the present invention.
FIG. 3 is a block diagram showing the worker device of FIG. 2.
FIG. 4 is a block diagram showing the controller of FIG. 3.
Figure 5 is a block diagram showing the data transmission determination module of Figure 4.
Figure 6 is a block diagram showing the local server of Figure 2.
Figure 7 is a block diagram showing the IoT sensor operating unit of Figure 6.
FIG. 8 is a block diagram showing the first sensing-value transmission determination module of FIG. 7.
FIG. 9 is a conceptual diagram for explaining FIG. 8.
FIG. 10 is a block diagram showing the central monitoring server of FIG. 2.
FIG. 11 is a block diagram showing the data recovery unit of FIG. 10.
FIG. 12 is a block diagram showing the restoration-value determination module of FIG. 11.
FIG. 13 is a block diagram showing the optimal-range (A') optimization unit of FIG. 10.

Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

Figure 2 is a configuration diagram showing a safety management system for industrial sites, which is an embodiment of the present invention.

The safety management system 1 for industrial sites in FIG. 2, which is an embodiment of the present invention, collects and monitors the location information of workers and the status information of each industrial facility in real time, enabling rapid response to safety accidents and reducing the amount of unnecessary data transmission. It enables real-time processing of data by dramatically reducing energy consumption, and prevents unnecessary power consumption of worker devices owned by workers, thereby dramatically solving the problem of not being able to provide safety management services due to battery discharge.

In addition, as shown in FIG. 2, the safety management system 1 for industrial sites of the present invention is a local server installed at each of the industrial sites (S1, ..., Sn) where at least one industrial facility (M) is installed. (5-1), ..., (5-N), worker location information transmitted from local servers (5-1), ..., (5-N) and each industrial facility (M) A central monitoring server (3) that stores and monitors status information, and a communication network ( 10).

In addition, the safety management system for industrial sites (1) includes a worker device (6) provided to the worker for each industrial site (S), and beacon-transmitters (7) installed at intervals in the relevant industrial site (S). It includes IoT sensors (8) installed in industrial equipment (M) and measuring preset parameters.

At this time, the local server 5 of each industrial site (S) is connected to the worker device 6 and the IoT sensor 8 through the network communication network 20, and the worker device 6 and the beacon-transmitter 7 are connected to the BLE It is connected to a communication network (30).

The worker device 6 is a digital terminal that is attached to the worker's safety helmet (H), provided to the worker, or attached to the worker's body. For example, the worker device 6 may be attached to a hard hat or implemented as a wearable device.

Additionally, the worker device 6 includes a short-range communication module that supports BLE communication with the adjacent beacon-transmitter 7, and a data communication module that supports data communication with the local server 5.

At this time, when the worker device 6 receives location information from the adjacent beacon-transmitter 7 through a short-distance communication module, it transmits the received location information to the local server 5.

In addition, the worker device 6 includes a battery and an alarm display means, and when unexpected confirmation data is transmitted from the local server 5, the worker device 6 displays alarm information to the outside through the alarm display means. At this time, the alarm display means may be composed of a speaker, an LED, a vibrating element, etc., and for example, when the alarm display means is constructed with a speaker, it may be configured to output an alarm sound when sudden confirmation data is received.

In addition, the worker device 6 receives and stores the optimal range (A') from the local server 5 at every preset period (T), and when location information is received from the beacon transmitter 7, the current location ( It is determined whether P) is included within the optimal range (hereinafter referred to as reference range (A)) based on the reference position (P').

At this time, the worker device 6: 1) If the current position (P) is outside the reference range (A), the current position (P) is set as the reference position (P') and then stored, and the worker's location information is stored locally. It is transmitted to the server (5), but 2) if the current location (P) is included in the reference-range (A), the reference location (P') is not set separately and the worker's location information is not transmitted to the local server (5). No.

In other words, the worker device 6 detects the worker location through low-power BLE communication, but does not continuously transmit the detected worker position to the local server 5, but only when the worker's position is outside the reference range (A). , Since it is configured to transmit location information to the local server (5), not only can the amount of unnecessary data transmission to the central monitoring server (3) be dramatically reduced, but also significantly reduce battery consumption of the worker device.

Beacon-transmitters (7) are installed at intervals in the industrial site (S), transmit beacon signals in real time, detect the location of the adjacent worker device (6), and transmit the detected location information to the corresponding worker device through BLE communication. Send to (6).

A plurality of IoT sensors 9 are installed in each industrial facility (M) to measure preset parameters, and in detail, they may consist of temperature, fire, humidity, smoke, gyro, current, shock sensors, etc.

Additionally, the IoT sensors 9 transmit the measured sensing-value to the local server 5 through the network communication network 20 at every preset first cycle T1.

The local server 5 is connected to the worker device 6 of the relevant industrial site (S) and the network communication network 20, and receives location information from the worker device 6. At this time, the local server (5) transmits the location information received from the worker device (6) to the central monitoring server (3), but if no separate location information is received from the worker device (6), it is sent to the central monitoring server (3). Location information is not transmitted.

In addition, the local server 5 is connected to the IoT sensors 9 and the network communication network 20, and receives sensing-values from the IoT sensors 9 every first cycle (T1).

At this time, the local server 5 selects only valid data that is a sensing value with meaningful information among the sensing values transmitted from the IoT sensors 9, generates collected data by matching the selected valid data, and then collects it. Transmit to the central monitoring server (3).

In addition, when the local server 5 receives optimal-range (A') data for each area (S') for each worker at a preset period (T) from the central monitoring server (3), it The optimal-range (A') data of ') is transmitted to the worker device 5 of the corresponding worker.

In addition, when the local server 5 receives unexpected confirmation data from the central monitoring server 3, it transmits the received unexpected confirmation data to the worker device 6, so that the worker is immediately aware that an unexpected situation has occurred.

The central monitoring server (3) is a server that manages and controls the operations of the local servers (5-1), ..., (5-N).

In addition, the central monitoring server (3) stores and monitors worker location information transmitted from local servers (5-1), ..., (5-N).

At this time, the central monitoring server 3 may be configured to detect whether the worker has left the site by comparing the preset work schedule information and location information of each worker, and when the worker leaves the site, generates unexpected confirmation data. It can be transmitted to the corresponding local server (5).

In addition, when the central monitoring server (3) receives collected data from the local servers (5-1), ..., (5-N), it determines whether missing data exists in the received collected data and then determines whether there is missing data. Upon detection, missing data is restored to optimal values.

In addition, the central monitoring server (3) stores and monitors the transmitted or restored collected data, and when an unexpected situation occurs, generates unexpected confirmation data and transmits it to the corresponding local server (5).

In addition, the central monitoring server (3) optimizes the optimal range (A') of each area (S') for each worker at every preset cycle (T), and sends the optimized optimal range (A') to the local server. Send to (5).

At this time, the area (S’) refers to one block when the industrial site (S) is divided into equal areas.

In this case, the optimal range increases in size as 1) the longer the worker stayed in the area (S') in the same time zone, 2) the shorter the time the worker stayed in the area (S') in the same time zone. It has the characteristic of becoming smaller as it goes on.

In general, work in industrial facilities has periodicity, and workers have the characteristic of performing work for a predetermined period of time without leaving the vicinity of the industrial facility on which they are working.

For example, assuming that worker 'A' performs tests on industrial equipment 'a' for 10 to 15 minutes at 11 am every day, if you set the optimal-range (A') for that worker narrowly, Since the worker device 6 transmits location information to the local server 5 very frequently, it not only causes battery power consumption of the worker device 6 but also increases the amount of unnecessary data transmission.

That is, in the present invention, the central monitoring server (3) utilizes the worker's previous location log data, takes into account the worker's work periodicity, optimizes the optimal range (A'), and then monitors the worker through the local server (5). It is transmitted to the device 6, and the worker device 6 determines whether to transmit the location information to the local server 5 depending on whether the current location (P') is included in the reference range (A) when detecting location information. By being configured to track the worker's location in real time, it is possible to reduce unnecessary battery consumption and data communication of the worker device 6.

FIG. 3 is a block diagram showing the operator device of FIG. 2, and FIG. 4 is a block diagram showing the controller of FIG. 3.

The worker device 6 in FIG. 3 is a digital device that is attached to the worker's safety helmet (H), provided to the worker, or attached to the worker's body.

In addition, as shown in FIG. 3, the worker device 6 includes a controller 60 that controls the operation of the worker device 6, and an alarm display means ( 61) and a battery 62 that supplies power to the controller 60 and the alarm display means 61.

In addition, as shown in FIG. 4, the controller 60 includes a control module 600, a memory 601, a data communication module 602, a short-distance communication module 603, a location information acquisition module 604, and a data transmission module. It consists of a determination module 605, a reference-position (P') resetting module 606, and a location information transmission control module 607.

The control module 600 is the operating system (OS) of the controller 60 and controls the operations of the control objects (601), (602), (603), (604), (605), (606), and (607). Manage and control.

Additionally, when location information is acquired through the location information acquisition module 604, the control module 600 executes the data transmission determination module 605.

Additionally, if the control module 600 determines that data transmission is necessary in the data transmission determination module 605, it executes the reference-position (P′) reset module 606.

In addition, when the control module 600 receives the optimal range (A') information for each area (S') of the worker from the local server (5), the control module 600 receives the optimal range (A') for each area (S'). ) Information is stored in the memory 601.

The memory 601 stores preset device identification information and operator identification information.

In addition, the memory 601 stores preset location information for each of the areas (S') dividing the industrial site into a plurality of areas.

Additionally, the memory 601 stores optimal-range (A') information for each area (S') transmitted from the local server (5).

Additionally, the reference-position (P') set by the reference-position (P') reset module 606 is stored in the memory 601.

The data communication module 602 connects to the network communication network 20 and transmits and receives data with the local server 5.

The short-range communication module 603 performs data communication with the BLE beacon 7 connected to the BLE communication network 30.

The location information acquisition module 604 controls the short-distance communication module 603 and acquires location information in conjunction with the adjacent BLE beacon 7.

At this time, when location information is acquired through the location information acquisition module 604, the control module 600 executes the data transmission determination module 605.

Figure 5 is a block diagram showing the data transmission determination module of Figure 4.

The data transmission determination module 605 of FIG. 5 is executed under the control of the control module 600 when location information is acquired by the location information acquisition module 604.

In addition, as shown in FIG. 5, the data transmission determination module 605 includes a data extraction module 651, a reference-range detection module 652, a position comparison module 653, a deviation determination module 654, It consists of a data transmission decision module 655 and a data non-transmission decision module 656.

The data extraction module 651 extracts the location information acquired through the location information acquisition module 604 and the optimal-range (A') and reference-position (P') data stored in the memory 601.

The reference-range detection module 652 corresponds to the reference-position (P') by referring to the reference-position (P') extracted by the data extraction module 651 and the location information of each area (S'). After detecting the area S', the optimal range A' matching the detected area S' is detected by referring to the optimal range A' of each area S'.

In addition, when the reference-range detection module 652 detects the optimal-range (A') of the corresponding area (S'), the reference-range that is the optimal-range (A') based on the reference-position (P') (A) is detected.

In other words, the reference range (A) refers to the area when the optimal range (A') is matched around the reference position (P').

The position comparison module 653 compares the worker's current position (P) with the reference range (A) detected by the reference range detection module 652.

The deviation determination module 654 determines in the position comparison module 653 that 1) if the current position (P) is not included in the reference range (A), the worker deviates from the reference range (A), and 2 ) If the current position (P) is included in the reference range (A), it is determined that the worker has not deviated from the reference range (A).

At this time, the control module 600 executes the data transmission decision module 655 in the deviation determination module 654, if 1) the operator determines that the operator has deviated from the reference range (A), and 2) the operator deviates from the reference range (A). If it is determined that (A) has not been deviated, the data non-transmission decision module 656 is executed.

The data transmission decision module 655 is executed when the deviation determination module 654 determines that the worker has deviated from the reference range (A), and decides to transmit the location information to the local server 5.

The data non-transmission decision module 656 is executed when the deviation determination module 654 determines that the worker has not deviated from the reference range (A), and determines not to transmit the location information to the local server 5. .

The reference-position (P') reset module 606 is executed when the data transmission determination module 605 determines to transmit location information, and changes the worker's current-position (P) to the reference-position (P'). After resetting, it is stored in memory 601.

The location information transmission control module 607 controls the data communication module 602 when the data transmission determination module 605 determines that 1) location information is to be transmitted, and the location information is transmitted to the local server 5. 2) If it is decided not to transmit location information, the operation is terminated without transmitting location information.

Figure 6 is a block diagram showing the local server of Figure 2.

As shown in FIG. 6, the local server 5 consists of a control unit 50, a memory 51, a communication interface unit 52, an IoT sensor operation unit 53, and an emergency situation management unit 55.

The control unit 50 is the operating system (OS) of the local server 5, and manages and controls the operations of the control objects 51, 52, 53, and 55.

Additionally, when the control unit 50 receives unexpected confirmation data from the central monitoring server 3, it inputs it to the emergency situation management unit 55.

Additionally, the control unit 50 executes the IoT sensor operating unit 55 at every preset first cycle (T1).

Additionally, when the control unit 50 receives location information from the worker device 6 through the communication interface unit 52, it stores the received location information in the memory 51 and simultaneously transmits it to the central monitoring server 3.

In addition, when the control unit 50 receives the optimal range (A') information of each area (S') for each worker from the central monitoring server 3 through the communication interface unit 52, the control unit 50 controls each of the worker devices 6. The communication interface unit 52 is controlled so that the optimal range (A') information of each corresponding area (S') is transmitted.

The memory 51 stores location information of each area (S') of the industrial site (S), communication identification information and worker identification information of the worker device (6).

In addition, the memory 51 stores the optimal-range (A') information for each area (S') for each worker transmitted from the central monitoring server (3).

In addition, the memory 51 stores the sensing values of each IoT sensor 8 collected at each preset first cycle T1 and the collected data generated by the IoT sensor operating unit 53.

The communication interface unit 52 transmits and receives data with the worker device 6 and the IoT sensor 8 connected to the network communication network 20.

Additionally, the communication interface unit 52 transmits and receives data to and from the central monitoring server 3 through the communication network 10.

Figure 7 is a block diagram showing the IoT sensor operating unit of Figure 6.

The IoT sensor operating unit 53 in FIG. 7 is executed under the control of the control unit 50 every preset first cycle (T1).

In addition, as shown in FIG. 7, the IoT sensor operating unit 53 includes a sensing-value collection module 531, a first sensing-value transmission determination module 532-1, ..., an Nth sensing-value It consists of a transmission determination module (532-N) and a collection data generation module (533).

At this time, when the number of IoT sensors 8 is N, the sensing-value transmission determination module 532 is also composed of N pieces. For example, if the number of IoT sensors 8 is N, the sensing-value transmission determination module 532 is also composed of N pieces.

The sensing-value collection module 531 controls the communication interface unit 52 to collect sensing-values from the IoT sensors 8.

FIG. 8 is a block diagram showing the first sensing-value transmission determination module of FIG. 7.

The first sensing value transmission determination module 532-1 in FIG. 8 analyzes the sensing value measured by the first IoT sensor 8 and determines whether the corresponding sensing value is valid data, which is data with meaningful information. 1) If it is determined that the sensing value is valid data, it is decided to transmit the sensing value to the central monitoring server (3). 2) If it is determined that the sensing value is not valid data, the sensing value is determined to be transmitted to the central monitoring server (3). -Decide not to transmit the value to the central monitoring server (3).

In addition, as shown in FIG. 8, the first sensing value transmission determination module 532-1 includes the first sensing-value extraction module 5321, the set quantity sensing-value extraction module 5322, and the status for each cycle. It consists of a value assignment module 5323, an overall state value calculation module 5324, a comparison module 5325, a judgment module 5326, and a first sensing value transmission decision module 5327.

The first sensing-value extraction module 5321 extracts previous sensing-values of the first IoT sensor 8 stored in the memory 51 from the memory 51.

The set quantity sensing-value extraction module 5322 extracts the first sensing-values of the set quantity L based on the latest among the first sensing-values extracted by the first sensing-value extraction module 5321. .

At this time, assuming that the set quantity (L) is '10', the set quantity sensing-value extraction module 5322 extracts 10 first sensing-values from the previous cycle to the 10th previous cycle among the previous first sensing-values. Extract.

The state value granting module 5323 for each cycle is configured to: 1) If the value is higher than the previous cycle, for each of the first sensing-values of the set quantity (L) extracted by the set quantity sensing-value extraction module 5322, '-100/N' is given as the state value (Va) of the cycle. 2) If the value is lower than the previous cycle, '+100/N' is given as the state value (Va) of the cycle.

FIG. 9 is a conceptual diagram for explaining FIG. 8.

For example, as shown in Figure 9, when the set quantity (L) is '10', the state value granting module 5323 for each cycle determines that the first sensing-value of the previous first cycle (T1) is '10'. Since it decreased from the first sensing-value of the previous cycle (T2), '+10 (10 = 100 / 10)' is given as the state value (Va) of the previous first cycle (T1), and the state value (Va) of the previous first cycle (T1) is given as '+10 (10 = 100 / 10)'. Since the first sensing value of (T9) is higher than the first sensing value of the previous cycle (T10), '-10' is assigned as the state value (Va) of the previous 9th cycle (T).

In addition, the state value granting module 5323 for each cycle compares the first sensing-value of the previous final cycle (TN) with the first sensing-value of the previous cycle (T(N+1)) to determine the state value (Va). ) is given.

The total state value calculation module 5324 calculates the total state value (VA) by adding up the state values (Va) of each cycle calculated by the state value granting module 5323 for each cycle.

For example, as shown in Figure 9, the set quantity (L) is '10', and the state values (Va) of the previous 1 to 10 cycles (T1 to T10) are '+10' and '+10', respectively. , assuming '+10', '-10', '+10', '+10', '+10', '+10', '-10', '+10', overall status value calculation module 5324) calculates '60', which is the sum of the state values (Va) of each cycle, as the total state value (VA).

The comparison module 5325 compares the overall state value (VA) calculated by the overall state value calculation module 5324 with a preset normal range.

At this time, the normal range refers to the range of the overall state value (VA) in which it can be determined that data transmission is not necessary.

For example, assuming that the first sensing value for each cycle is higher than the first sensing value for the previous cycle, '-100/N' is given as the state value (Va) of each cycle, Accordingly, the overall state value (VA) becomes '-100' and falls outside the normal range.

As another example, assuming that the first sensing-value for each cycle is lower than the first sensing-value for the previous cycle, '+100/N' is given as the state value (Va) for each cycle, and thus Accordingly, the overall state value (VA) becomes '+100' and falls outside the normal range.

The judgment module 5326 determines in the comparison module 5325 that 1) the overall state value (VA) is within the normal range, and the first sensing value is not valid data, but 2) the overall state value (VA) If it is outside this normal range, it is determined that the first sensing value is valid data.

Going back to FIG. 8, looking at the first sensing-value transmission decision module 5327, the transmission decision module 5327 determines that the decision module 5326 1) determines that the first sensing-value is not valid data, 1) It is decided not to transmit the sensing value. 2) If the first sensing value is determined to be valid data, it is decided to transmit the first sensing value.

Meanwhile, each of the second, ..., N sensing-value transmission determination modules 532-2, ..., (532-N) is the same as the first sensing-value transmission determination module 531. In this way, it is decided whether to transmit each of the second, ..., N sensing-values by the second, ..., N IoT sensors 8.

The collection data generation module 533 determines whether data transmission is necessary for each of the first, ..., N sensing-value transmission determination modules 532-1, ..., (532-N). Collected data is created by matching values.

At this time, the collected data generated by the collected data generation module 533 is stored in the memory 51 and simultaneously transmitted to the central monitoring server 3 under the control of the control unit 50.

FIG. 10 is a block diagram showing the central monitoring server of FIG. 2.

As shown in FIG. 10, the central monitoring server 3 includes a control unit 30, a DB server 31, a data transmission/reception unit 32, a data restoration unit 33, a location log data generation unit 34, It consists of an industrial equipment monitoring unit 35, a worker location tracking unit 36, an emergency situation determination unit 37, and an optimal-range (A') optimization unit 38.

When the control unit 30 receives location information or collected data from the local servers 5-1, ..., (5-N) through the data transmitting and receiving unit 32, the control unit 30 converts the received location information or collected data into data. Enter into the restoration unit (33).

In addition, the control unit 30 executes the optimal-range (A') optimization unit 38 at each preset cycle (T), and the optimal-range (A') optimization unit 38 determines each area (S) for each worker. When the optimal range (A') of ') is created, the optimal range (A') information of each area (S') for each worker is stored in the DB server (31) and at the same time, the local server (5) The data transmitting and receiving unit 32 is controlled so that the data is transmitted.

In addition, when the control unit 30 determines that an unexpected situation has occurred in the emergency situation determination unit 37 and generates unexpected confirmation data, the control unit 30 controls the data transmitting and receiving unit 32 to transmit the generated unexpected confirmation data to the corresponding local server 5. to be transmitted to .

The DB server 31 stores communication identification information and location information of the local server 5 at each industrial site.

Additionally, the location log data generated by the location log data generator 34 is stored in the DB server 31.

Additionally, the DB server 31 stores collected data transmitted from the local server 5 and restored by the data restoration unit 33.

In addition, the DB server 31 stores the optimal-range (A') information of each area (S') for each worker optimized in the optimal-range (A') optimization unit 38.

The data transmitting and receiving unit 32 transmits and receives data with the local servers 5-1, ..., (5-N).

FIG. 11 is a block diagram showing the data recovery unit of FIG. 10.

The data restoration unit 33 of FIG. 11 restores missing sensing values among the collected data transmitted from the local server 5 through the data transmitting and receiving unit 32, or restores location information when location information is not input. do.

In addition, as shown in FIG. 11, the data restoration unit 33 includes a location information restoration unit 331 that restores the location information when location information is not received from the local server 5, and a sensing-value missing from the collected data. It includes a collected data restoration unit 333 that restores missing data when present.

When location information is input, the location information restoration unit 331 inputs the input location information to the location log data generation unit 34. However, if the location information is not input, the location information is replaced by the previous location of the worker. After restoring, the restored location information is input into the location log data generator 34.

In other words, when the location information restoration unit 331 receives location information from the local server 3, it does not perform a separate restoration task, but when location information is not transmitted, the location information restoration unit 331 restores by replacing the worker's previous location with the current location. Do the work.

The collected data restoration unit 333 includes an omission judgment module 3331, a sensing-value extraction module 3332, a difference-value calculation module for each cycle (3333), a difference-value increase/decrease rate calculation module (3334), and a restoration -It consists of a value determination module (3335) and a missing data restoration module (3336).

The omission determination module 3331 determines whether there is a missing sensing value in the collected data transmitted through the data transmitting and receiving unit 31.

At this time, if there is no missing sensing-value, the missingness determination module 3331 stores the collected data received from the local server 5 in the DB server 31 without performing a separate restoration operation, and simultaneously stores the collected data transmitted from the local server 5 in the DB server 31. Input to the monitoring unit (35).

The sensing-value extraction module 3332 is executed when the missingness determination module 3331 determines that a missing sensing-value exists among the collected data, and searches the DB server 31 to detect the missing IoT sensor ( 8) Extract the previous sensing values.

The difference-value calculation module 3333 for each cycle extracts only the most recent m sensing-values among the sensing-values extracted by the sensing-value extraction module 3332, and then uses the extracted m sensing-values, Calculate the difference-value of the sensing-values of adjacent periods (T).

That is, the difference-value calculation module 3333 for each cycle calculates (m-1) difference-values.

The difference-value increase/decrease rate calculation module 3334 uses the difference-values calculated by the difference-value calculation module 333 for each cycle to calculate the increase/decrease rates of adjacent difference-values.

FIG. 12 is a block diagram showing the restoration-value determination module of FIG. 11.

As shown in FIG. 12, the restoration-value determination module 3335 includes an increase/decrease rate input module 33351, an analysis module 33352, a continuous increase state classification module 33353, and a first restoration-value calculation module 33354. ), a continuous decrease state classification module (33355), a second restoration-value calculation module (33356), a maintenance state classification module (33357), and a third restoration-value calculation module (3348).

The increase/decrease rate input module 33351 receives the difference-value increase/decrease rate calculated from the difference-value increase/decrease calculation module 3334.

The analysis module (33352) analyzes the increase/decrease rate data input by the increase/decrease rate input module (33351) to determine whether the IoT sensor (8) that measured the missing sensing value is in a ‘continuous increase state’ or a ‘continuous decrease state’. Or determine whether it is in a ‘maintenance state’.

At this time, 'continuous increase state' means a state in which the increase/decrease rates gradually increase, 'continuous decrease state' means a state in which the increase/decrease rates gradually decrease, and 'maintenance state' means a state in which the increase/decrease rates do not gradually increase/decrease. It means state.

In other words, the analysis module (33352) determines that the IoT sensor (8) is in a 'continuous increase state' if 1) each increase rate is greater than the previous increase rate over time, and 2) each increase rate is less than the previous increase rate. If so, the IoT sensor 8 is judged to be in a 'continuous decline state'. 3) If it does not correspond to the above-mentioned 1) and 2), the IoT sensor 8 is judged to be in a 'maintenance state'.

The continuous increase state classification module (33353) is executed when the analysis module (33352) determines that the increase/decrease rate is continuously increasing, and classifies the IoT sensor (8) as being in a ‘continuous increase state’.

The first restoration-value calculation module (33354) is executed when the corresponding IoT sensor (8) is classified as 'continuously increasing state' by the continuously increasing state classification module (33353), and is based on the sensing-value of the previous cycle and the previous cycle. Calculate the restoration-value of the missing sensing-value by applying the increase/decrease rate of .

The continuous decrease state classification module (33355) is executed when the analysis module (33352) determines that the increase and decrease rates are gradually decreasing, and classifies the corresponding IoT sensor (8) as a ‘continuous decrease state’.

The second restoration-value calculation module (33356) is executed when the corresponding IoT sensor (8) is classified as a 'continuous decrease state' by the continuous decrease state classification module (33355), and calculates the previous increase or decrease in the sensing-value of the previous cycle. Calculate the restored value of the missing sensing value by applying the ratio.

The maintenance status classification module (33357) is executed when the analysis module (33352) determines that the increase/decrease rates do not gradually increase or decrease, and classifies the corresponding IoT sensor (8) as ‘maintenance status’.

The third restoration-value calculation module (33358) is executed when the relevant IoT sensor 8 is classified as 'maintenance state' by the maintenance state classification module 33357, and converts the sensing-value of the previous cycle into a restoration-value. decide

Going back to FIG. 10 and looking at the location log data generator 34, the location log data generator 34 generates location log data by matching worker information, industrial site identification information, and current time, and then generates the generated location log. Data is stored in the DB server (31).

The industrial equipment monitoring unit 35 monitors the collected data input from the data recovery unit 33.

The worker location tracking unit 36 uses the location information input from the data recovery unit 33 to track the location of each worker.

The unexpected situation determination unit 37 analyzes the monitoring information from the industrial equipment monitoring unit 35 and the worker trajectory information from the worker location tracking unit 36 to determine whether an unexpected situation has occurred.

For example, if the elapsed time for the value of the IoT sensor 8 to exceed the threshold increases, the emergency situation determination unit 37 may determine that an unexpected situation has occurred in the relevant industrial facility.

Additionally, when an unexpected situation occurs, the emergency situation determination unit 37 generates unexpected confirmation data including the details of the unexpected situation and industrial site identification information.

At this time, when unexpected confirmation data is generated in the emergency situation determination unit 37, the control unit 30 controls the data transmitting and receiving unit 32 so that the generated unexpected confirmation data is transmitted to the corresponding local server 5.

Figure 13 is a block diagram showing the optimal-range (A') optimization unit of Figure 10.

The optimal-range (A') optimization unit 38 of FIG. 13 is executed at every preset period (T) under the control of the control unit 30.

In addition, as shown in FIG. 13, the optimal-range (A') optimization unit 38 includes a worker location log data extraction module 381, an elapsed time calculation module 382 for each area, a comparison module 383, It consists of an area-group setting module 384, a final elapsed time calculation module 385 for each area-group, a sorting module 386, and an optimal-range (A) setting module 387 for each area (S').

The worker location log data extraction module 381 extracts the location log data of each worker stored in the DB server 31 during a preset period.

The elapsed time calculation module 382 for each area refers to the location log data of each worker extracted by the worker location log data extraction module 381, and calculates the time the worker stayed in each area (S') for each worker. Calculate the elapsed time (t).

At this time, the elapsed time calculation module 382 for each area refers to the time information included in the location log data and assigns a greater weight as it is closer to the current time zone, but gives a smaller weight as it moves away from the current time zone, so that the elapsed time ( t) is calculated.

For example, the current time is 10 AM, and by referring to the previous location log data of worker 'A', worker 'A' stayed in area 'a' for 12 seconds at 11 AM and 12 seconds at 3 PM. At this time, the elapsed time calculation module 382 for each area assigns a greater weight to the 12 seconds at 11 a.m., but assigns a relatively lower weight to the 12 seconds at 3 p.m. to calculate the elapsed time (t). do.

That is, the elapsed time calculation module 382 for each area calculates the waiting time (t) by adding up the time the worker stayed during the cycle (T) for each area (S'), and increases the weight as it approaches the current time. Given this, the waiting time (t) is calculated taking the work periodicity into account.

The comparison module 383 compares the elapsed time (t) of each area (S’) with a preset setting value (TH, Threshod).

At this time, the set value (TH) is the minimum elapsed time at which it can be determined that the worker has performed a certain task in the corresponding area (S’).

The area-group setting module 384 detects an area (S') with an elapsed time (t) longer than the set value (TH) in the comparison module 383, and sets adjacent areas based on the area (S'). M areas (S') are set as an area-group, and 2) an area (S') with an elapsed time (t) less than the set value (TH) is set as one area-group.

The final elapsed time calculation module 385 for each area-group calculates the final elapsed time (T) by adding up the elapsed times of the areas (S') included in each area-group set by the area-group setting module 384. Calculate .

The alignment module 386 refers to the final elapsed time (T) calculated by the final elapsed time calculation module 385 for each area-group, and determines the same final elapsed time for areas (S') belonging to the same area-group. After having (T), the areas (S') are sorted according to the order from highest to lowest final elapsed time (T) for each worker.

The optimal range (A) setting module 387 for each area sets the optimal range (A) for each area (S') to have an area proportional to the final elapsed time (T).

At this time, the optimal range (A) setting module 387 for each area ensures that if the final elapsed time (T) is ‘0’, the optimal range (A) of the preset minimum area is applied.

Meanwhile, when the optimal range (A) for each area (S') for each worker is generated by the optimal range (A) setting module 387 for each area, the control unit 30 generates the optimal range (A) for each area for each worker. The data transmitting and receiving unit 32 stores the optimal range (A) information of (S') in the DB server 31 and simultaneously transmits it to the corresponding local servers (5-1), ..., (5-N). ) is controlled.

In this way, the safety management system for industrial sites (1), which is an embodiment of the present invention, collects and monitors the location-information of workers and the status-information of each industrial facility in real time, enabling rapid response to safety accidents as well as unnecessary data. By dramatically reducing the amount of transmission, real-time data processing is possible, and by preventing unnecessary power consumption of worker devices owned by workers, it is intended to dramatically solve the problem of not being able to provide safety management services due to battery discharge.

1: Safety management system for industrial sites 3: Central monitoring server
5: Local server 6: Worker device
7:BLE Beacon 8:IoT Sensor
10: Communication network 30: Control unit
31: DB server 32: Data transmission/reception unit
33: Data restoration unit 34: Location log data creation unit
35: Industrial equipment monitoring unit 36: Worker location tracking unit
37: Emergency situation determination unit 38: Optimal-range (A') optimization unit
60: Controller 61: Alarm display means
62: Battery 331: Location information restoration unit
333: Collection data restoration unit
381: Worker location log data extraction module
382: Elapsed time calculation module for each area 383: Comparison module
384:Area-group setting module
385: Final elapsed time calculation module for each area-group
386: Sorting module
387: Optimum-range (A) setting module for each area (S')

Claims (10)

In the safety management system for industrial sites for monitoring the worker location and equipment status of an industrial site (S) including at least one industrial facility (M):
central monitoring server;
BLE beacons that are installed at intervals in the industrial site (S) and transmit a beacon-signal to a node connected to a local communication network to detect the location of the connected node and then transmit location information to the node;
It is carried by the worker and receives location information from adjacent BLE beacons among the BLE beacons through a short-distance communication module. If the current location (P) is within the preset setting range (A) based on the previous location, the location A worker device that does not transmit information to the outside, but transmits location information to the outside through a data communication module if it is not included in the setting range (A);
A local server is connected to the worker device through a network and receives location information from the worker device, and transmits the received location information to the central monitoring server,
The central monitoring server is
When the location information of the worker device is transmitted through the local server, the transmitted location information is stored and monitored, but if the location information is not transmitted, the previous location is replaced with the current location and stored and monitored,
The worker device is
A controller including the short-range communication module and the data communication module;
Includes a battery that supplies power to the controller,
The controller is
Memory in which the preset setting-range (A) is stored;
A location information acquisition module that controls the short-range communication module and acquires location information by linking with an adjacent BLE beacon;
It is executed when location information is acquired by the location information acquisition module, and if the acquired current location (P) is included in the preset setting range (A) based on the preset reference position (P'), the location a data transmission determination module that determines not to transmit the information to the local server, but determines to transmit the location information to the local server if it is not within the setting range (A);
It is executed when the data transmission determination module determines to transmit location information, resets the worker's current location (P) to the reference location (P'), and stores the reference location (P') in the memory. ') reset module;
In the data transmission determination module, when it is decided to transmit the location information, the data communication module is controlled to transmit the location information to the local server, but when it is decided not to transmit the location information, the location information is not transmitted. Includes a location information transmission control module that terminates the operation without
The worker device is
Rather than transmitting the worker's location information as is to the local server, it transmits it to the local server only when the worker's current location (P) is outside the setting range (A), thereby reducing the amount of unnecessary data transmission and at the same time saving the battery. A safety management system for industrial sites that can reduce power consumption. The method of claim 1, wherein the central monitoring server
When an unexpected situation occurs, unexpected confirmation data is transmitted to the local server,
The worker device is
A safety management system for industrial sites, further comprising an alarm display means that displays alarm information to the outside under control of the controller when unexpected confirmation data is received from the central monitoring server through the local server. delete The method of claim 2, wherein the memory
The location information of each of the areas (S') dividing the industrial site (S) into a plurality of areas is preset and stored,
The data transmission determination module is
Data extraction for extracting the location information acquired through the location information acquisition module, the location information and setting-range (A') information of each area (S') stored in the memory, and the reference-position (P') data. module;
After detecting the area (S') corresponding to the reference position (P') by referring to the reference position (P') extracted by the data extraction module and the location information of each area (S'), Referring to the setting-range (A') of each area (S'), detecting the setting-range (A') matching the detected area (S') and setting it based on the reference-position (P') -Reference-range detection module that detects the reference-range (A), which is the area to which the range (A') is applied;
A position comparison module that compares the worker's current position (P) with the reference range (A) detected by the reference range detection module;
In the position comparison module, if the current position (P) is not included in the reference range (A), it is determined that the worker has left the reference range (A), but the current position (P) is within the reference range (A). When included, a deviation determination module that determines that the worker has not deviated from the reference range (A);
a data transmission decision module that is executed when the deviation determination module determines that the worker has deviated from the reference range (A) and determines to transmit location information to the local server;
An industry characterized in that it is executed when the deviation determination module determines that the worker has not deviated from the reference range (A) and includes a data non-transmission decision module that determines not to transmit location information to the local server. Safety management system for field use. The method of claim 4, wherein the central monitoring server
DB server;
By referring to the location information transmitted from the worker device through the local server, location log data is generated by matching the worker identification information, current location (P), and current time, and then stored in the DB server. wealth;
A worker location tracking unit that tracks the worker's location through the worker's current location (P);
A setting-range (A') optimization unit executed at each preset cycle (T);
A control unit that transmits the setting-range (A') information of each area (S') for each worker optimized by the setting-range (A') optimization unit to the local server,
The local server is
When the setting-range (A') information of each area (S') for each worker is transmitted from the central monitoring server, the setting-range (A') information of each area (S') is transmitted to the corresponding worker device. Features a safety management system for industrial sites. The method of claim 5, wherein the set-range (A') optimization unit
A worker location log data extraction module that extracts the location log data of each worker stored in the DB server during a preset period (T);
The elapsed time for each area calculates the elapsed time (t), which is the time the worker stayed in each area (S'), by referring to the location log data of each worker extracted by the worker location log data extraction module. Calculation module;
The elapsed time (t) of each area (S') of the worker calculated by the elapsed time calculation module for each area is the elapsed time by which it can be determined that the contractor has performed a certain amount of work in the area (S'). Comparison module that compares with a preset setting value (TH, Threshod), which means the minimum value;
In the comparison module, 1) when an area (S') having an elapsed time (t) greater than the set value (TH) is detected, M areas (S') adjacent to the area (S') are grouped into area-groups. 2) an area-group setting module that sets the area (S') with an elapsed time (t) less than the set value (TH) as one area-group;
A final elapsed time calculation module for each area-group that calculates the final elapsed time (T) by adding up the elapsed times of the areas (S') included in each area-group set by the area-group setting module 384. ;
After referring to the final elapsed time (T) calculated by the final elapsed time calculation module for each area-group, the areas (S') belonging to the same area-group have the same final elapsed time (T), A sorting module that sorts the areas (S') according to the order from highest to lowest final elapsed time (T);
Safety for industrial sites, comprising a setting-range (A) setting module for each area that sets the setting-range (A) of each area (S') to have an area proportional to the final elapsed time (T). Management system. The method of claim 6, wherein the elapsed time calculation module for each area is
Safety for industrial sites, which calculates the elapsed time (t) by referring to the time information included in the location log data, giving greater weight the closer it is to the current time zone, and giving smaller weight the farther away it is from the current time zone. Management system. According to any one of claims 5 to 7, the safety management system for industrial sites is
First, ..., N IoT sensors installed in the industrial equipment (M), measure preset parameters, and then transmit the measured sensing values to the local server;
The local server is
A memory storing sensing values received from the first,...,N IoT sensors;
It includes the first, ..., N IoT sensor operating units that are executed every preset first cycle (T1),
The IoT sensor operation department
A sensing-value collection module that collects sensing-values measured by the first,...,N IoT sensors every first cycle (T1);
First, ..., N sensing-values that analyze each of the sensing-values of the first, ..., N sensors collected by the sensing-value collection module and determine whether to transmit each sensing-value. Transmission determination modules;
Among the first,...,N sensing values, collection data is generated by matching the sensing-values determined to transmit data by the first,...,N sensing-value transmission determination modules. Contains a creation module,
Each of the first, ..., N sensing-value transmission determination modules
A sensing-value extraction module that extracts the sensing-values of each IoT sensor during the first period (T1);
A set quantity sensing-value extraction module for extracting first sensing-values of a set quantity (L) based on the latest among the sensing-values extracted by the sensing-value extraction module;
For each of the sensing-values of the set quantity (L) extracted by the set quantity sensing-value extraction module, 1) If the value is higher than the previous cycle, '-100/L' is set as the state value (Va) of the cycle. 2) a status value granting module for each cycle that grants '+100/L' as the status value (Va) of the cycle if the value is lower than the previous cycle;
a total state value calculation module that calculates a total state value (VA) by adding up the state values (Va) of each cycle calculated by the state value granting module for each cycle;
A comparison module that compares the overall state value (VA) calculated by the overall state value calculation module with a preset normal range;
In the comparison module, 1) if the overall state value (VA) is within the normal range, it is determined that the sensing-value is not valid data; 2) if the overall state value (VA) is outside the normal range, the sensing-value a judgment module that determines that this is valid data;
If the determination module determines that 1) the sensing value is not valid data, it decides not to transmit the sensing value, and 2) if it determines the sensing value is valid data, it transmits the sensing value. A safety management system for industrial sites, characterized in that it includes a sensing-value transmission decision module that determines what to do. The method of claim 8, wherein the central monitoring server
It further includes a data restoration unit that analyzes the collected data transmitted from the local server and restores the missing data when missing data is detected,
The data recovery unit
a missingness determination module that determines whether missing sensing values exist in the collected data transmitted from the local server;
A sensing-value extraction module that is executed when the missingness determination module determines that a missing sensing-value exists and extracts previous sensing-values of the missing IoT sensor;
Among the sensing-values extracted by the sensing-value extraction module, only the most recent m sensing-values are extracted, and then the extracted m sensing-values are used to obtain the difference-value of the sensing-values of adjacent periods (T). A difference-value calculation module for each cycle that calculates;
a difference-value increase/decrease rate calculation module that calculates increase/decrease rates of adjacent difference-values using the difference-values calculated by the difference-value calculation module for each cycle;
a restoration-value determination module that determines a restoration-value of the missing sensing-value by utilizing the difference-value increase/decrease rate calculated by the difference-value increase/decrease calculation module;
A safety management system for industrial sites comprising a missing data restoration module that restores missing data by replacing the missing sensing value with a restoration value determined by the restoration value determination module. The method of claim 9, wherein the restoration-value determination module
an increase/decrease rate input module that receives the difference-value increase/decrease rate calculated from the difference-value increase/decrease rate calculation module;
By analyzing the increase/decrease rate data input by the increase/decrease input module, 1) if each increase rate is higher than the previous increase rate, the corresponding IoT sensor is judged to be in a 'continuous increase state', and 2) each increase rate is all higher than the previous increase rate. If it is less than that, the relevant IoT sensor (8) is judged to be in a ‘continuously decreasing state’. 3) If it is not included in both the ‘continuously increasing state’ and the ‘continuously decreasing state’, the relevant IoT sensor is judged to be in a ‘maintenance state’. module;
A continuous increase state classification module that is executed when the analysis module determines that the increase/decrease rate is continuously increasing and classifies the corresponding IoT sensor as a 'continuous increase state';
It is executed when the relevant IoT sensor is classified as a 'continuous increase state' by the continuous increase state classification module, and restores the missing sensing value by applying the increase/decrease rate of the previous cycle to the sensing value of the previous cycle. A first restoration-value calculation module that calculates;
A continuous decrease state classification module that is executed when the analysis module determines that the increase and decrease rates are gradually decreasing and classifies the corresponding IoT sensor as a 'continuous decrease state';
It is executed when the corresponding IoT sensor is classified as a 'continuous decrease state' by the continuous decrease state classification module, and calculates the restoration value of the missing sensing value by applying the previous increase/decrease rate to the sensing value of the previous cycle. Second restoration-value calculation module;
A maintenance state classification module that is executed when the analysis module determines that the increase/decrease rates do not gradually increase or decrease, and classifies the corresponding IoT sensor as a 'maintenance state';
It is executed when the corresponding IoT sensor is classified as 'maintenance state' by the maintenance state classification module, and includes a third restoration-value calculation module that determines the sensing-value of the previous cycle as the restoration-value. Safety management system for industrial sites.