KR20210061227A - Worker Safety Monitoring System in Shadow Area and Method thereof - Google Patents

Abstract

The present invention relates to a worker safety monitoring system in a shaded area and a method thereof. By recognizing location information of an RFID post installed in a shaded area by an RFID tag, the location of a work group working in the shaded area can be transmitted to a control server in real time. The control server compares the location of the work group and train operation information, determines whether the work group is at risk, and notifies the same so as to ensure the safety of the work group. As an example, the method of the present invention comprises: an RFID recognition step in which worker terminals recognize each RFID tag mounted on an RFID post installed in a work area, and automatically select a group leader terminal from among worker terminals; a recognition information transmission step in which group member terminals among the worker terminals transmit recognition information to the group leader terminal; a work group information transmission step of transmitting, by the group leader terminal, work group information including the recognition information received from the group member terminals and recognition information of the group leader terminal to a control server; a comparison step in which the control server compares the work group information and train operation information to calculate a result value; a risk situation determination step in which the control server compares the result value with a reference time to determine whether a work group is at risk; and a notification step in which when the control server determines that the work group is at risk, a risk situation is notified to the group member terminals, the group leader terminal, and an engineer terminal.

Description

Worker Safety Monitoring System in Shadow Area and Method thereof

Various embodiments of the present invention relate to a system and method for monitoring worker safety in a shaded area.

In general, work performed in shaded areas where GPS (Global Positioning System) transmission and reception is not smooth, such as underground or tunnels, can be performed within the working time agreed between the person in charge of the space and the operator.

As such, it may be difficult to determine the location of a worker through GPS in real time for work in a shaded area.

In addition, in the case of work performed on the track in shaded areas, accidents may occur to workers due to unexpected and unexpected situations. In this way, when an accident occurs or the working time is delayed and the working time agreed between the worker and the person in charge of the space is exceeded, the train may be operated within the track. At this time, since the engineer of the train running on the track cannot determine the location of the worker, it may not be possible to secure a safe distance from the worker, and additional accidents may occur due to the running of the train.

In the present invention, the location of the work group can be transmitted to the control server in real time through the location information of the RFID post stored in the RFID tag, and the control server compares the location of the work group and the operation information of the train in real time. Provides a safety monitoring system and method for workers in shaded areas that can ensure the safety of workgroups by determining whether or not and notifying them.

In addition, the present invention provides a system and method for monitoring worker safety in a shaded area that can improve communication and management efficiency since the control server communicates with one group leader terminal, so that the location and work group information of all workers can be received. have.

The system and method for monitoring worker safety in a shaded area according to an embodiment of the present invention are RFID recognition in which worker terminals recognize each RFID tag mounted on an RFID post installed in the work area, and automatically select a group leader terminal from among the worker terminals. A step of transmitting recognition information from among the worker terminals, in which group member terminals transmit recognition information to the group leader terminal, and the group leader terminal including recognition information received from the group member terminal, and recognition information of the group leader terminal. A work group information transmission step of transmitting the work group information to a control server; a comparison step of comparing the work group information and train operation information by the control server to calculate a result value, and the control server calculating the result value. A risk situation determination step of determining whether the work group is at risk compared to a reference time, and when the control server determines that the work group is at risk, a notification step of notifying the risk situation to the group member terminal, the group leader terminal, and the engineer's terminal It may include.

In the RFID recognition step, the group member terminal and the group leader terminal may receive location information of the RFID post from an RFID tag mounted on the RFID post.

In the step of transmitting the recognition information and the step of transmitting the work group information, recognition information and work group information may be respectively transmitted at a predetermined period.

When the group member terminal or the group leader terminal leaves the work area, the group member terminal or the group leader terminal returns to the work area by notifying the work area departure by a notification sound, and the group member terminal or the group leader terminal return to the work area If so, the RFID tag of the RFID post may be recognized again and included in the work group.

When the group leader terminal leaves the work area, one of the worker terminals may be automatically selected as a new group leader terminal.

The worker ID recognized by the worker terminals is automatically stored in the RFID tag, and the recognition state is maintained when the worker terminals are located within the cell coverage of the RFID post within the recognition reference time, and when the recognition reference time elapses, the The worker ID stored in the RFID tag is automatically destroyed, and in the worker terminals, the RFID tag of the RFID post installed in the work area is periodically installed before the recognition reference time elapses for work in the work area. Re-awareness may be required.

In the comparison step, the control server compares the location and time information of the work group from the work group information received from the group leader terminal and the location and time information of the train from the train operation information extracted from the database of the control server. It is possible to calculate a result value that is the difference between the time at which workers are located in the work area and the time when the train is expected to arrive in the work group.

In the step of determining whether there is a danger situation, when the result value is equal to or shorter than the reference time in the control server, it may be determined as a danger situation.

In the notification step, the control server may request the engine driver terminal to run the train at a reduced speed.

After the notification step, the group leader terminal transmits safety assurance information indicating that all workers included in the work group have secured a safety distance from the work area, to the control server, and the control server transmits the safety security information to the control server. It may further include a deceleration warning canceling step of canceling the deceleration warning of the train by the terminal and requesting to operate in normal driving.

The identification information may include a worker ID consisting of a group ID and a personal ID for each worker, location information of the RFID post, and a recognition time of recognizing the RFID tag.

The work group information may include the number of work group personnel, group ID, individual ID for each worker, location information for each worker, and current time.

The system and method for monitoring worker safety in a shaded area according to an embodiment of the present invention can transmit the location of the work group to the control server in real time through the location information of the RFID post stored in the RFID tag, and the control server is the work group in real time. By comparing the location of the train and the operation information of the train, it is possible to ensure the safety of the work group by determining whether the work group is at risk and notifying it.

In addition, according to various embodiments of the present invention, the system and method for monitoring worker safety in a shaded area can improve communication and management efficiency because the control server communicates with one group leader terminal, so that the location and work group information of all workers can be received. There will be.

1 is a block diagram showing a safety monitoring system for workers in a shaded area according to the present invention.
FIG. 2 is a flow chart illustrating a safety monitoring method using the worker safety monitoring system in the shaded area of FIG. 1.
3 is a perspective view illustrating an example in which a plurality of RFID posts are installed on a track in the worker safety monitoring system in the shaded area of FIG. 1.
4 is a structural diagram showing an example of the configuration of a group member terminal, a group leader terminal, and an engineer terminal in the worker safety monitoring system in the shaded area of FIG. 1.
5 is a structural diagram showing an example of a configuration of a control server in the worker safety monitoring system in the shaded area of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention are provided to more completely describe the present invention to those of ordinary skill in the art, and the following examples may be modified in various other forms, and the scope of the present invention is as follows. It is not limited to the examples. Rather, these embodiments are provided to make the present disclosure more faithful and complete, and to fully convey the spirit of the present invention to those skilled in the art.

In addition, in the following drawings, the thickness or size of each layer is exaggerated for convenience and clarity of description, and the same reference numerals refer to the same elements in the drawings. As used herein, the term “and/or” includes any and all combinations of one or more of the corresponding listed items. In addition, in the present specification, "connected" means not only the case where the A member and the B member are directly connected, but also the case where the member A and the member B are indirectly connected by interposing the member C between the member A and the member B. do.

The terms used in this specification are used to describe specific embodiments, and are not intended to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly indicates another case. Also, as used herein, “comprise” and/or “comprising” specify the presence of the mentioned shapes, numbers, steps, actions, members, elements and/or groups thereof. And does not exclude the presence or addition of one or more other shapes, numbers, actions, members, elements and/or groups.

In this specification, terms such as first and second are used to describe various members, parts, regions, layers and/or parts, but these members, parts, regions, layers and/or parts are limited by these terms. It is self-evident that it should not be. These terms are only used to distinguish one member, part, region, layer or portion from another region, layer or portion. Accordingly, a first member, component, region, layer or part to be described below may refer to a second member, component, region, layer or part without departing from the teachings of the present invention.

In addition, the system according to the present invention may be implemented using any suitable hardware, firmware (eg, on-demand semiconductor), software, or any suitable combination of software, firmware and hardware. For example, the various components of the system according to the invention may be formed on one integrated circuit chip or on separate integrated circuit chips. In addition, various components of the system may be implemented on a flexible printed circuit film, and may be formed on a tape carrier package, a printed circuit board. In addition, various components included in the system may be processes or threads running on one or more processors, in one or more computing devices, which execute computer program instructions to perform various functions mentioned below, and Can interact with other components. Computer program instructions are stored in a memory that can be executed on a computing device using standard memory devices such as, for example, random access memory. Computer program instructions may also be stored in other non-transitory computer readable media such as, for example, a CD-ROM, a flash drive, or the like. In addition, those of ordinary skill in the art related to the present invention may understand that the functions of various computing devices are combined with each other, integrated into one computing device, or the functions of a specific computing device are not departing from the exemplary embodiments of the present invention. It should be recognized that it can be distributed among fields.

For example, the control server according to the present invention is a general commercial unit consisting of a central processing unit, a mass storage device such as a hard disk or a solid state disk, a volatile memory device, an input device such as a keyboard or mouse, and an output device such as a monitor or printer. It may be operated on a computer, but the present invention is not limited thereto.

Referring to FIG. 1, a structural diagram showing a system for monitoring worker safety in a shaded area according to the present invention is shown. Also, referring to FIG. 2, a flow chart illustrating a safety monitoring method using the worker safety monitoring system in a shaded area of FIG. 1 is shown. Also referring to FIG. 3 is a perspective view showing an example in which a plurality of RFID posts are installed on a track in the worker safety monitoring system in a shaded area of FIG. 1. Hereinafter, a system and method for monitoring the safety of workers in a shaded area will be described with reference to FIGS. 1 to 3.

First, the worker safety monitoring system 100 in the shaded area may include an RFID post 110, a group member terminal 120, a group leader terminal 130, an engineer terminal 140, and a control server 150.

As shown in FIG. 3, a plurality of RFID posts 110 may be installed so as to be spaced apart from each other along the length direction of the line R based on the line R. In addition, an RFID tag 111 may be attached to each of the plurality of RFID posts 110, respectively. Here, the RFID tag 111 may be installed at an appropriate height of the RFID post 110 in consideration of the viewing height of the group member and the group leader.

In addition, each RFID tag 111 may be an active tag, and may include a memory capable of storing a post ID, which is position information of an RFID post. In addition, the RFID tag 111 may temporarily store a worker ID, which is information on the recognized group member terminal 120 and the group leader terminal 130, in a memory. Here, the RFID tag 111 may automatically destroy (reset) the worker ID stored in the memory when a predetermined time elapses. The group member terminal 120 and the group leader terminal 130 may generate and propagate a radio signal, and receive a post ID, which is location information of the RFID post 110 from the RFID tag 111.

In FIG. 3, four RFID posts 110 are shown to be spaced apart along one side of the line R, but a plurality of RFID posts 110 may be disposed to be spaced apart from each other along one side and/or the other side. 110) is not limited to the installed location and number. In addition, the RFID post 110 includes a first RFID post 110A, a second RFID post 110B, and a third RFID post 110C that are sequentially installed to be spaced apart from each other along the length direction on one side of the line R for convenience of description. A case in which the fourth RFID post 110D is included will be described.

Position information of the first RFID post 110A, the second RFID post 110B, the third RFID post 110C, and the fourth RFID post 110D may be stored in RFID tags 111A, 111B, 111C, and 111D, respectively. . The first RFID post 110A, the second RFID post 110B, the third RFID post 110C, and the fourth RFID post 110D have cell coverage, which is an area that each RFID tag 111A, 111B, 111C, and 111D can recognize. I can have it. Here, the cell coverage may be an area within a predetermined radius around the RFID posts 110A, 110B, 110C, and 110D. In addition, some areas of cell coverage may overlap with the RFID posts 110A, 110B, 110C, and 110D. In addition, when the group member terminal 120 and the group leader terminal 130 recognize each of the RFID tags 111A, 111B, 111C, and 111D according to the work area, each of the RFID posts 110A, 110B, 110C, and 110D The recognition state can be maintained within cell coverage. Here, the work area may be an area for a work group consisting of a group member and a group leader to perform work, and may include cell coverage of at least one RFID post 110A, 110B, 110C, and 110D. That is, the work area may include cell coverage of one RFID post 110A, 110B, 110C, 110D, or may include cell coverage of two or more adjacent RFID posts 110A, 110B, 110C, and 110D.

In addition, the group member terminal 120 and the group leader terminal 130 are shown separately for convenience of description, but when the RFID tag 111 of the RFID post 110 is recognized among a plurality of worker terminals 120 and 130, it is automatically One terminal may be selected as the group leader terminal 130. As an example, the group leader terminal 130 may be a terminal that initially recognizes the RFID tag 111 among the operator terminals 120 and 130 at the beginning of a work, but the present invention is not limited thereto. Here, the worker terminals 120 and 130 may include group member terminals 120 and a group leader terminal 130.

Here, the operator terminals 120 and 130 each recognize the RFID tag 111 through a local area network, thereby receiving location information (post ID) of the RFID post and transmitting the operator ID. In addition, the group member terminal 120, the group leader terminal 130, the engineer terminal 140, and the control server 150 may transmit/receive data through a wireless communication network. To make it more sleepy, the wireless communication network provides information between the group member terminal 120 and the group leader terminal 130, between the group leader terminal 130 and the control server 150, and between the engineer terminal 140 and the control server 150. And it may play a role of transmitting data to each other. Here, the wireless communication network may be an LTE-R network, WiFi, and other wireless communication networks, which are integrated railway wireless networks.

In addition, although the group member terminal 120 and the engineer terminal 140 are each illustrated as one, the number of the group member terminal 120 and the engineer terminal 140 may be multiple, and the number of the group member terminal 120 and the engineer terminal 140 is not limited in the present invention. However, the group leader terminal 130 may be one terminal selected from among the worker terminals 120 and 130.

The engineer's terminal 140 is a wired or wireless communication device such as a computer such as a laptop, a desktop or a laptop installed or embedded in the driver's seat, or a personal communication system (PCS), a global system for mobile communications (GSM), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, CDMA (Code Division Multiple Access)-2000, W-CDMA (W-Code Division Multiple Access) ), Wibro (Wireless Broadband Internet) terminals, smartphones, smart pads, tablet PCs, etc., but may be all kinds of handheld-based wireless communication devices, but in the present invention It does not limit this. Of course, the group member terminal 120 and the group leader terminal 130 may also be handheld-based wireless communication devices.

When such a group member terminal 120, the group leader terminal 130, and the engineer terminal 140 are handheld-based wireless communication devices, they may be implemented by mounting various open operating systems, and as an open operating system, for example, It can be composed of Symbian of NOKIA, BlackBerry of RIMS, iPhone of Apple, Windows Mobile of Microsoft, Android of Google, and Sea of Samsung Electronics. In addition, when the applicant terminal 110 and the pooler terminal 120 use an open operating system, the user installs and manages various applications arbitrarily, unlike a mobile phone with a closed operating system (aka "feature phone"). can do.

Also, referring to FIG. 4, a structural diagram showing an example of the configuration of a group member terminal 120, a group leader terminal 130, and an engineer terminal 140 in the worker safety monitoring system 100 in the shaded area of FIG. 1 is shown. have. Hereinafter, the group member terminal 120, the group leader terminal 130, and the engineer terminal 140 will be referred to as user terminals 120, 130, and 140.

As shown in FIG. 4, the user terminals 120, 130, and 140 are basically a control unit 121, a memory unit 122, a screen output unit 123, a key input unit 124, a sound input/output unit 125, and a camera 126. ) And a communication module 127.

The control unit 121 is a generic term for functional configurations that control the operation of the user terminals 120, 130, and 140, and includes at least one processor and an execution memory, and each functional configuration unit and bus (BUS) provided in the user terminals 120, 130, and 140 It is connected through.

The control unit 121 loads at least one program code provided in the user terminals 120, 130, and 140 into the memory unit 122 through a processor, calculates and executes, and transfers the result to at least one functional configuration unit through the bus. Thus, the operation of the user terminals 120, 130, and 140 is controlled.

The memory unit 122 is a generic term for a nonvolatile memory provided in the user terminals 120, 130, and 140, and stores at least one program code executed through the control unit 121 and at least one data set in which the program code is used. To keep it. The memory unit 122 basically includes a system program code and a system data set corresponding to the operating system of the user terminals 120, 130, 140, a communication program code and a communication data set for processing wireless communication connection of the user terminals 120, 130, 140, and at least one An application program code and an application data set are stored, and a program code and data set for a dedicated application (or website) for implementing the present invention are also stored in the memory unit.

The screen output unit 123 is composed of a screen output device (eg, a display device such as an LCD or LED device) and an output module driving the same, and a dedicated application (or website) for implementing the present invention is a screen output device You can control what is output through.

The key input unit 124 is composed of a key input device having at least one key button (or a touch screen device interlocking with the screen output device) and an input module driving the same, and a dedicated application (or The user may input settings for driving the website) through the key input unit 124.

The sound input/output unit 125 may include a speaker for outputting a sound signal, a microphone for inputting a sound signal, and a sound module. The sound input/output unit 125 is connected to the control unit 121 by a bus and outputs an operation result corresponding to the sound output among various operation results of the control unit 121 through the speaker. The sound module decodes sound data to be output through the speaker and converts it into a sound signal. The sound input/output unit 125 transfers sound data input through the microphone to the control unit 121. In this case, the sound module may encode the sound signal input through the microphone and transmit it to the controller 121. Here, in the case of a personal computer, the sound input/output unit 125 may not be separately provided.

The camera 126 includes an optical unit, a charge coupled device (CCD), and a camera module driving the same, and acquires bitmap data input to the CCD through the optical unit. Here, if the camera 126 is a personal computer, it may not be separately provided.

The communication module 127 may include a wireless communication module 127a and a short-range communication module 127b according to a communication network to be used.

The wireless communication module 127a refers to a module for accessing a wireless communication network, and the wireless communication module 127a may be built-in or external to the user terminals 120, 130, and 140. The wireless communication module 127a of the group leader terminal 130 and the engineer terminal 140 may transmit and receive signals for safety monitoring of workers through the control server 150 and wireless communication networks, respectively. In addition, the wireless communication module 127a of the group member terminal 120 may transmit recognition information, which is information on the worker ID and location, to the group leader terminal 130 through a wireless communication network. Such a wireless communication module 127a is connected to the control unit 121 by a bus to transmit various calculation results of the control unit 121 through a wireless communication network, or receive data through a wireless communication network, and the control unit 121 At the same time, the wireless communication network and the procedure of connection, registration, communication, and handoff are maintained.

The short-range communication module 127b refers to a module for short-range communication. For short-range communication, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), UltraWideband (UWB), ZigBee, and the like may be used. Through the short-range communication module 127b, the group member terminal 120 and the group leader terminal 130 may recognize the RFID tag 111 mounted on the RFID post 110. Of course, the short-range communication module 127b is also connected to the control unit 121 by a bus and receives the position information of the RFID post 110 on which the RFID tag 111 is mounted, which is recognized through the short-range communication module 127b, and the control unit 121 At the same time, the local area network and the procedure of connection, registration, communication, and handoff are maintained.

In addition, FIG. 5 is a structural diagram showing an example of the configuration of the control server 150 in the worker safety monitoring system 100 in the shaded area of FIG. 1. The control server 150 may transmit and receive data through a wireless communication network with the group leader terminal 130 and the engineer terminal 140. Of course, the control server 150 executes an application, a website, or a program (hereinafter referred to as "dedicated application") for worker safety monitoring in the shaded area in the group leader terminal 130 and the engineer terminal 140, and then stores data and information. You can send and receive. Of course, the control server 150 may perform a function of providing various interface screens and sounds that are implemented after a dedicated application is executed in the group leader terminal 130 and the engineer terminal 140.

The control server 150 may include a server control unit 151, a communication unit 152, a database 153, a display unit 154 and an input unit 155.

The server control unit 151 may compare work group information, which is information about workers in a work area transmitted from the group leader terminal 130 in real time, with train operation information to determine whether workers are at risk. When it is determined that the work group is in a dangerous situation, the server control unit 151 may provide a warning and a notification sound to the group leader terminal 130 and the engineer terminal 140.

The communication unit 152 is a generic term for a communication configuration for communication and connection through a wireless communication network, and includes at least one of an antenna for transmitting and receiving a radio frequency signal of a specific frequency band, an RF module, a baseband module, a signal processing module, and a wired communication module. It can be configured. The communication unit 152 may be connected to the database 153 and the server control unit 151 through a bus. The communication unit 152 may transmit and receive data and/or information with the group leader terminal 130 and the engineer terminal 140 through a wireless communication network.

The database 153 may store train operation information and work group information in a work area transmitted from the group leader terminal 130. Of course, train operation information and work group information may be periodically updated and changed under the control of the server controller 151.

The display unit 154 may display content selected through the input unit 155 of the control server 150. In addition, the input unit 155 may include a key input device having at least one key button (or a touch screen device interlocking with the screen output device) and an input module that drives the key input device.

As shown in Fig. 2, the method of monitoring worker safety in a shaded area includes an RFID recognition step (S1), a recognition information transmission step (S2), a work group information transmission step (S3), a comparison step (S4), and a risk situation determination step. (S5), a notification step (S6), a safety assurance transmission step (S7), a deceleration warning canceling step (S8), and a work completion confirmation step (S9).

In the RFID recognition step (S1), the worker terminals 120 and 130 included in the work group may recognize the RFID tags 111 of the RFID posts 110 installed in the work area, respectively. The operator terminals 120 and 130 may each recognize the RFID tag 111 through the short-range communication module 117c while the dedicated application is being executed. At this time, the operator terminals 120 and 130 may operate as an RFID reader.

When the worker terminals 120 and 130 each recognize the RFID tag 111 of the RFID post 110 installed in the work area, one of the worker terminals 120 and 130 may be automatically selected as the group leader terminal 130. . As an example, the group leader terminal 130 may be a terminal that initially recognizes the RFID tag 111 among the operator terminals 120 and 130 at the beginning of work, but the present invention is not limited thereto. Also When the group leader terminal 130 leaves the work area, the group leader authority is lost, and one of the worker terminals 120 and 130 in the work area may be automatically selected as the new group leader terminal 130. Of course, in the operator terminals 120 and 130 that have left the work area, a notification sound indicating that the work area has left the dedicated application may be generated through the sound input/output unit 125. That is, workers can check whether they are leaving the work area in real time through a notification sound provided by the worker terminals 120 and 130. In addition, when the operator terminals 120 and 130 return to the work area after departure, the RFID tag 111 of the RFID post 110 may be recognized again and be included in the work group.

In addition, the worker ID may be automatically stored in the RFID tag 111 recognized by the worker terminals 120 and 130. In the RFID tag 111, the stored worker ID may be automatically destroyed when the recognition reference time elapses. Of course, while the work is in progress in the work area, the operator terminals 120 and 130 need to re-recognize the RFID tag 111 before the recognition reference time elapses. That is, the operator terminals 120 and 130 must periodically recognize the RFID tag 111 of the RFID post 110 provided in the work area before the recognition reference time elapses. In addition, when the operator terminals 120 and 130 are located within the cell coverage of the RFID post 110 within the recognition reference time, the recognition state may be maintained.

Here, the worker ID may include a group ID and a personal ID for each worker. In addition, the group member terminal 120 and the group leader terminal 130 may each receive a post ID, which is location information of the RFID post 110 to which the recognized RFID tag 111 is attached. Through this, the group member terminal 120 and the group leader terminal 130 can check the designated work area.

The work area may be set between the control server 150 and the operator terminals 120 and 130 before the workers start working. Additionally, the group leader terminal 130 may reduce or expand the work area through a dedicated application. Of course, the work area extended by the group leader terminal 130 may be approved through a verification process of the control server 150. In addition, at least one RFID post 110 may be installed in the work area. In addition, when a plurality of RFID posts 110 are installed in the work area, an area including all cell coverages of the plurality of RFID posts 110 may be the work area.

In the identification information transmission step (S2), identification information, which is information on which the RFID tag 111 is recognized by the group member terminal 120, may be transmitted to the group leader terminal 130. The recognition information transmission step (S2) may be performed in real time after the RFID recognition step (S1). Here, the recognition information may include location information of the RFID post 110 recognized by the group member terminal 120, a recognition time of recognizing the RFID tag 111, and a worker ID. Of course, when the worker terminals 120 and 130 are in a work area in which GPS transmission/reception is possible, the location information may use GPS location information of each of the worker terminals 120 and 130. At this time, the location information of the worker may include both post ID and GPS location information.

The group leader terminal 130 may receive recognition information of at least one group member terminal 120 through the wireless communication module 127a while the dedicated application is running. In addition, the group member terminal 120 may transmit the recognition information at a predetermined period.

In the work group information transmission step (S3), the group leader terminal 130 transmits work group information including both the recognition information received from the group member terminal 120 and the recognition information of the group leader terminal 130 to the control server 150 Can be transmitted in real time. Of course, the group leader terminal 130 may receive and update the recognition information at a predetermined period from the group member terminal 120, and transmit the work group information to the control server 150 at the same period. Here, the predetermined period may be set within 1 minute for the safety of workers, but the present invention is not limited thereto. However, it is preferable to set the predetermined period to be shorter than the reference time for determining the dangerous situation in the step S5 of determining whether the dangerous situation is present.

Here, the work group information may include the number of work group personnel, group ID, individual ID for each worker, location information for each worker, and current time. The group leader terminal 130 may serve as a communication intermediary between the group member terminal 120 and the control server 150, and may occur when a plurality of worker terminals 120 and 130 directly communicate with the control server 150. Communication overload can be prevented. That is, since the control server 150 communicates with one group leader terminal 130, communication and management efficiency can be improved.

In the comparison step S4, the control server 150 may compare work group information and train operation information. The control server 150 displays the location and time information of the work group among the work group information received through the communication unit 152 in real time, and the location and time information of the train among the train operation information extracted from the database 132 It can be displayed on the part 154. The display unit 154 of the control server 150 may display a map of the work area and location information of trains running in an adjacent area in real time.

At this time, the control server 150 may calculate a result value by comparing the location and time information of the work group with the location and time information of the train in the server control unit 151. For example, if the server control unit 151 of the control server 150 assumes that the work group is located in the work area at 11:29 and the train is scheduled to arrive in the work area at 11:31, the result is calculated as 2 minutes. can do.

In the step S5 of determining whether there is a dangerous situation, the control server 150 compares the result value with a reference time, and if the result value is equal to or shorter than the reference time, it may be determined as a dangerous situation. Here, the reference time may be set to 3 minutes, but this is a numerical value that can be variously changed and is not limited in the present invention. However, it is preferable to set the reference time to at least twice the predetermined period for transmitting the recognition information and work group information.

In the notification step (S6), when the control server 150 determines that the situation is in danger, the group member terminal 120, the group leader terminal 130, and the engineer terminal 140 may notify the dangerous situation. At this time, the group member terminal 120, the group leader terminal 130, and the engineer's terminal 140 may generate a notification sound through the sound input/output unit 125, and the operator and the engineer check the danger situation in real time through the notification sound. I can. Additionally, the group member terminal 120, the group leader terminal 130, and the engineer terminal 140 may display the real-time location of the train and the arrival time in the work area through the screen output unit 123.

Additionally, the control server 150 may request the engineer terminal 140 to run the train at a reduced speed for the safety of the work group. At this time, the engineer who confirms the deceleration operation request received from the engineer's terminal 140 may control the train to operate by decelerating at a low speed.

In the safety security transmission step (S7), after the group leader terminal 130 receives a notification from the control server 150, it is possible to transmit safety security information indicating that all workers included in the work group have secured a safety distance from the work area. have.

In the deceleration warning canceling step (S8), when the control server 150 receives safety security information from the group leader terminal 130, it may request the engineer terminal 140 to cancel the deceleration warning of the train. At this time, the engineer who confirms the deceleration cancellation request received from the engineer terminal 140 may control the train to run at a normal driving speed.

In the task completion confirmation step (S9), when the task is completed in the group member terminal 120 and the group leader terminal 130, it can be confirmed that the task is completed on a dedicated application. When the group member terminal 120 and the group leader terminal 130 are not completed, the RFID recognition step (S1), the recognition information transmission step (S2), the work group information transmission step (S3), and the comparison step (S4) , A dangerous situation determination step (S5), a notification step (S6), a safety assurance transmission step (S7), and a deceleration warning canceling step (S8) may be repeatedly performed depending on the situation.

Such a system and method for monitoring worker safety in a shaded area can secure the safety of the work group by comparing the location of the work group and the operation information of the train in real time in the control server, and notifying it when it is determined that the work group is dangerous. In addition, the system and method for monitoring worker safety in a shaded area can improve communication and management efficiency because the control server communicates with one group leader terminal, so that the location and work group information of all workers can be received.

What has been described above is only one embodiment for implementing the system and method for monitoring worker safety in a shaded area according to the present invention, and the present invention is not limited to the above-described embodiment, and as claimed in the following claims. As such, without departing from the gist of the present invention, anyone of ordinary skill in the field to which the present invention pertains will have the technical spirit of the present invention to the extent that various changes can be implemented.

100: Worker safety monitoring system in the shaded area
110: RFID post 120: group member terminal
130: group leader terminal 140: engineer terminal
150: control server

Claims (12)

An RFID recognition step of recognizing each of the RFID tags mounted on the RFID posts installed in the work area by the operator terminals, and automatically selecting a group leader terminal from among the operator terminals;
A recognition information transmission step in which group member terminals among the worker terminals transmit recognition information to the group leader terminal;
A work group information transmission step of transmitting, by the group leader terminal, work group information including recognition information received from the group member terminal and recognition information of the group leader terminal to a control server;
A comparison step in which the control server compares the work group information and train operation information to calculate a result value;
A risk situation determination step of the control server comparing the result value with a reference time to determine whether the work group is at risk; And
When the control server determines that the work group is dangerous, the method of monitoring worker safety in a shaded area, comprising a notification step of notifying a dangerous situation to the group member terminal, the group leader terminal, and the engineer's terminal. The method of claim 1,
In the RFID recognition step
Worker safety monitoring method in a shaded area in which the group member terminal and the group leader terminal receive location information of the RFID post from an RFID tag mounted on the RFID post. The method of claim 1,
In the step of transmitting the recognition information and the step of transmitting the work group information, the worker safety monitoring method in the shaded area transmits the recognition information and the work group information, respectively, at a predetermined period. The method of claim 1,
When the group member terminal or the group leader terminal leaves the work area, by notifying the work area departure through a notification sound, inducing return to the work area,
When the group member terminal or the group leader terminal returns to the working area, the RFID tag of the RFID post is recognized again and the worker safety monitoring method in the shaded area is included in the work group. The method of claim 4,
When the group leader terminal leaves the work area, one of the worker terminals is automatically selected as a new group leader terminal. The method of claim 1,
The worker ID recognized by the worker terminals is automatically stored in the RFID tag, and when the worker terminals are located within the cell coverage of the RFID post within the recognition reference time, the recognition state is maintained, and when the recognition reference time elapses, the The worker ID stored in the RFID tag is automatically destroyed,
The worker safety monitoring method in a shaded area in which the workers terminals periodically require re-recognition of the RFID tag of the RFID post installed in the work area before the recognition reference time elapses for work in the work area. The method of claim 1,
In the comparison step
The control server compares the location and time information of the work group from the work group information received from the group leader terminal and the location and time information of the train from the train operation information extracted from the database of the control server,
A method for monitoring worker safety in a shaded area for calculating a result value that is a difference between a time at which workers are located in the work area and a time when a train is scheduled to arrive in the work group. The method of claim 1,
In the step of determining whether there is a danger situation,
Worker safety monitoring method in a shaded area that determines that the result value is less than or equal to the reference time in the control server as a dangerous situation. The method of claim 1,
In the notification step
Worker safety monitoring method in a shaded area in which the control server requests the engineer terminal to run a train at a reduced speed. The method of claim 1,
After the notification step,
A safety security transmission step of transmitting, by the group leader terminal, safety security information indicating that all workers included in the work group have secured a safety distance from a work area to the control server; And
The control server further comprises a deceleration warning canceling step of releasing a deceleration warning of the train to the engineer terminal and requesting to operate in a normal driving manner. The method of claim 1,
The identification information includes a worker ID consisting of a group ID and a personal ID for each worker, location information of the RFID post, and a recognition time of recognizing the RFID tag. The method of claim 1,
The work group information is a method for monitoring worker safety in a shaded area including the number of work group personnel, group ID, individual ID for each worker, location information for each worker, and current time.

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