KR100779727B1 - Plant safety management system using rfid technology and the method thereof - Google Patents

Abstract

A system for managing safety of a workplace by using RFID and a method thereof are provided to prevent accidents, enhance environment in the workplace, and to maximize working efficiency or to prevent technology leakage. A system for managing safety of a workplace by using RFID comprises an RFID(Radio-Frequency Identification) tag(320), an RFID receiver(310), a CCTV(Closed-Circuit Television)(410), a speaker(420), a warning lamp(430), a management computer(100) and a management server(200). A position of a worker is detected through the RFID tag. The RFID receiver receives a signal from the RFID tag(320). The CCTV captures an image related to the operation state of a machine. The speaker and the warning lamp are installed at dangerous areas. The management computer is electrically connected to the CCTV, the speaker and the warning lamp which are controlled by the management server. The management server receives information from the RFID receiver and the management computer, controls operations of the RFID receiver and the management computer, and monitors persons coming into the workplace.

Description

Workplace safety management system using RDF and its method {PLANT SAFETY MANAGEMENT SYSTEM USING RFID TECHNOLOGY AND THE METHOD THEREOF}

1 is a view showing the configuration of a workplace safety management system using RFID according to a first embodiment of the present invention,

2 is a perspective view of a workplace to which a workplace safety management system using RFID according to a first embodiment of the present invention is applied;

3 is a perspective view of a workplace to which a workplace safety management system using RFID according to a second embodiment of the present invention is applied.

In the drawings according to the present invention, the same reference numerals are used for components having substantially the same configuration and function.

* Description of the symbols for the main parts of the drawings *

100: workplace management computer 200: management server

310: RFID receiver 320: RFID tag

410: CC 420: speaker

430: warning light 440: light curtain

The present invention relates to a workplace safety management system, and more particularly, to a workplace safety management system for managing the work machine of the workplace and the dangerous area around the work machine using RFID technology.

There are numerous facilities in the workshops that produce the products. That is, facilities such as raw materials waiting in the workshop before processing the product, numerous machine tools for processing the raw materials, transportation equipment for transporting the processed products, finished products and the like are mixed in the workplace with the workers. Facilities in these current workplaces are exposed to workers as well as non-workers as they are, so there is a high probability of a safety accident. Although machine tools are equipped with safety devices, they also do not have a safety management system, such as preventing access by non-workers or preventing scattering of impurities generated during work.

In addition, since the non-worker can access the equipment currently in a defenseless state, the concentration of the worker can be reduced, and the production efficiency can be reduced by changing the process conditions or the like, and the technical confidentiality can be leaked to the outside.

Therefore, it is required to establish a safety management system in the workplace such as prevention of safety accidents that may occur in the workplace, improvement of the environment of the workplace, maximization of work efficiency, and prevention of leakage of technology.

The present invention was devised to solve the above problems, and an object of the present invention is to prevent the safety accidents that may occur in the workplace, to improve the environment of the workplace, to maximize the work efficiency, to prevent the leakage of technology, such as safe and efficient It is to provide a workplace safety management system and a method which can be managed.

The configuration of the present invention for achieving the above object is an RFID tag for identifying the location of the worker; An RFID receiver for receiving a signal from the RFID tag; CCTV for acquiring the operating state image of the working machine; A speaker installed in a hazardous area; A warning light installed in the dangerous area; A workplace management computer to which the CSI is electrically connected to a sputter and a warning light; And a management server that receives information from the RFID receiver and the workplace management computer, and controls and manages operations of the RFID receiver and the workplace management computer.

In a preferred embodiment, the RFID tag is attached to a worker's hard hat.

In a preferred embodiment, the RFID tag is divided into a visitor tag and a field worker tag, and the field worker tag is classified into an unauthorized worker and an authorized worker and attached to the helmet.

In a preferred embodiment, the system further comprises a light curtain for detecting a person approaching the hazardous area.

In a preferred embodiment, the RFID receiver and the workplace management computer transmit and receive data with the RFID server in a wireless LAN manner.

In a preferred embodiment, the management server uses the RFID information received through the RFID receiver to identify whether the person accessing the dangerous area is a visitor, unauthorized worker or authorized worker, and the person who has accessed the dangerous area In the case of a visitor or unauthorized worker, a warning signal is sounded and the announcement is sent to prohibit access through the speaker.

In a preferred embodiment, the management server sends the work instruction when the person who has accessed the dangerous area is identified as the authorized worker.

In a preferred embodiment, even after the announcements to the visiting and unauthorized workers do not go out of the danger zone, the operation of the work machine currently in progress is forcibly stopped.

Safety management method of the present invention for achieving the above object comprises the steps of setting a dangerous area around the work machine of the workplace; Detecting when a person approaches the dangerous area by using an RFID tag and an RFID receiver and recognizing whether the person who accesses the work area is a visitor or a field worker; In the division recognition step, when the user is recognized as a visitor to emit a warning light to ring the alarm and prohibit the access, and if it is recognized as a site worker identifying the unauthorized worker or authorized worker; And when the identification step is identified as a non-authorized worker to emit a warning light to beep and prohibit access, and if identified as the authorized worker to send a work instruction; characterized in that it comprises a.

In a preferred embodiment, the work instruction sending step checks and stores the identification ID of the authorized worker.

In a preferred embodiment, if the user does not go out of the danger zone even after sending out the announcement for the visitor and unauthorized workers, the operation of the work machine currently in progress is stopped.

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

[First Embodiment]

1 is a view showing the configuration of a workplace safety management system using RFID according to a first embodiment of the present invention, Figure 2 is a perspective view of a workplace to which a workplace safety management system using RFID according to a first embodiment of the present invention is applied to be.

Referring to the drawings, the workplace safety management system using RFID according to the first embodiment of the present invention RFID tag 320, RFID receiver 310, monitoring / warning equipment, workplace management computer 100 and management server 200 It is configured to include).

The RFID tag 320 is for identifying the location of the worker in the workplace, the RFID tag 320 is attached to a hard hat worn by the worker.

In addition, the RFID tag 320 is distinguished for the visitor and the field worker, and the RFID tag for the field worker is again distinguished for the unauthorized work bar and the authorization worker, and as a result, the RFID tag 320 is a visitor RFID tag, There are three categories: RFID tags for unauthorized workers and RFID tags for unauthorized workers.

 RFID tag For visitors Visitor RFID Tag  For field visitor RFID tags for unauthorized workers RFID tag for authorized worker

The RFID receiver 310 is for receiving a signal transmitted from the RFID tag 320.

The monitoring / warning equipment is a speaker (CCTV, 410) for acquiring the operating state image of the working machine, a speaker installed in the dangerous area to send a warning or work guide to the worker who entered the dangerous area (420) ) And a warning light 430 for warning a worker of a dangerous situation. When the working machine is provided in the protective case, the CTV 410 may be installed in a portion of the protective case to obtain an operating state image of the working machine.

The image obtained by the CCTV 410 is displayed on the monitor of the workplace management computer and is also transmitted to the management server 200 so that the worker of the management server 200 can control the operation state of each work machine. It allows you to check.

Here, the dangerous area refers to an internal area divided by the safety fence 800.

In addition, the monitoring / warning equipment has a light curtain 440 that is a sensor for detecting the worker entering the dangerous area.

The RFID tag 320 is also a device for detecting a person entering the dangerous territory and identifying whether the person coming in is an authorized worker, but since the RFID tag 320 is attached to the worker's hard hat, the helmet is not accidentally worn. If you do not wear a hard hat, such as when you do not, or intentionally do not wear a hard hat, even if the worker approaches a dangerous work machine it cannot be detected.

Therefore, in the workplace safety management system according to an embodiment of the present invention, by installing a light curtain 440 in the danger area in addition to the safety cap attached to the RFID tag 320 for safer workplace management, the worker can detect that the danger area enters. It was.

The workplace management computer 100 is connected to the light curtain 440, the CC 410, the warning light 430 and the speaker 420 to check the status of the equipment and to display the check status on the monitor The monitor of the workplace management computer allows to check the status of each monitoring / warning equipment. In addition, the image obtained by the Citi 410 is also displayed on the monitor of the workplace management computer.

In addition, the workplace management computer 100 not only transmits the worker detection information to the management server 200 when the worker's entry into the dangerous area is detected by the RFID receiver 310 or the light curtain 440. The warning light 430 is controlled under the control of the management server 200 to warn the worker who enters the danger zone that the danger zone has been entered or to transmit a warning broadcast through the speaker 420.

The management server 200 monitors people entering the workplace and manages their entry and exit.

The management server 200 manages the on / off state, data transmission / reception state, etc. of the RFID receiver 310 and the workplace management computer 100 and controls their operations, and further, the workplace management computer 100. It stores data on the operation status such as on / off status of monitoring / warning devices received from the system and manages the status of monitoring / warning devices

As described above, since the RFID tag 320 attached to the safety helmet of the worker is divided into a visitor, an unauthorized worker, and an authorized worker, the management server 200 is connected to the RFID information received through the RFID receiver 310. Therefore, it is possible to confirm whether the person who is approaching the dangerous area is a visitor or a field worker, and whether the field worker is an unauthorized worker or an authorized worker of the work machine.

The management server 200 emits a warning light to ring the warning light 430 and prohibit access through the speaker 420 when the person currently approaching the dangerous area is a visitor or unauthorized worker.

If the person approaching the dangerous area does not wear a hard hat with the RFID tag 320 attached thereto, the person enters the dangerous area and is not detected by the RFID receiver 310 and only by the light curtain 440. Approach is detected, in which case the management server 200 determines that the person approaching the danger zone is a visitor or unauthorized worker, sounds a warning light 430, and broadcasts the access prohibited through the speaker 420.

If the visitor or unauthorized worker does not leave the dangerous area within 5 seconds even with the above warning and prohibition of guidance, the management server 200 forcibly stops the operation of the working machine in the dangerous area to prevent the occurrence of a safety accident. Let's do it.

If the person approaching the dangerous area is an authorized worker, the management server 200 guides the work instruction to the user through the speaker 420 by voice or monitors the work instruction through the monitor of the workplace management computer 100. To display. Therefore, the authorized worker may proceed with the operation by viewing the information on the displayed screen.

The management server 200 uses the information of the RFID tag 320 read by the RFID receiver 310, especially when the person who enters the dangerous area is an authorized operator (ID, name, etc.) of the authorized operator. ID, which contains information about department name, etc., is stored. Therefore, at any time, it is possible to know which work is performed by which worker at what time.

In addition, the management server 200 not only manages the history of the authorized worker entering the danger zone, but also records and stores the access history of unauthorized workers and visitors, by using the access management information of such visitors, unauthorized workers and authorized workers. At any time, the information of people who have approached the dangerous area can be divided into invisible, unauthorized and authorized workers.

Second Embodiment

3 is a perspective view of a workplace to which a workplace safety management system using RFID according to a second embodiment of the present invention is applied.

3, the workplace safety management system using RFID according to the second embodiment of the present invention RFID tag 320, RFID receiver 310, monitoring / warning equipment (410, 420, 430, 440 ', 440) "), The workplace management computer 100 and the management server 200 is configured.

In the workplace safety management system according to the second embodiment of the present invention, the danger area is divided into a first danger area (D1) and a second danger area (D2), and the light curtain is connected to these first danger areas (D1). The workplace safety management system shown in the first embodiment is identical in configuration except that they are respectively installed in the secondary danger zone D2. Therefore, the same components as in the first embodiment will be omitted.

The monitoring / warning equipment includes a CCTV (410), a speaker 420, a warning light (430), a first light curtain (440 ') and a second light curtain (440 ").

The first light curtain 440 ′ is installed at the boundary of the primary hazardous area, and the second light curtain 440 ″ is installed at the boundary of the secondary danger area.

According to the workplace safety management system and method using RFID according to the second embodiment of the present invention, when a person approaches the primary danger zone, the management server 200 is received through the RFID receiver 310 According to the information, it is checked whether the person who is currently accessing the first danger zone is a visitor or a field worker, and whether the field worker is an unauthorized worker or an authorized worker for the work machine.

If the person currently approaching the first danger zone (D1) is a visitor or unauthorized worker, a warning light 430 is sounded and the announcement is sent to prohibit access through the speaker 420.

If the visitor or unauthorized worker does not leave the primary danger zone (D1) within 5 seconds even with the above warning and prohibition of guidance, the management server 200 prevents the occurrence of a safety accident. Forcibly stop the operation of the working machine inside.

In addition, even when the visitor or unauthorized worker approaches the second danger area without leaving the first danger area, the management server 200 passes through the RFID tag 320 and the RFID receiver 310 and the second light curtain. The detection of 440 " forcibly stops the operation of the work machine in the secondary danger zone.

If the person approaching the second dangerous area is an authorized worker, the management server 200 guides the work instruction by voice through the speaker 420 or the work instruction through the monitor of the workplace management computer 100. Display the contents, and confirm and store the identification ID (for example, ID including information on company number, name, department name, etc.) of the authorized worker using the information of the RFID tag 320 read by the RFID receiver 310. do.

In the above, the configuration and operation of the present invention has been shown in accordance with the above description and drawings, but this is merely described, for example, and various changes and modifications are possible without departing from the spirit and scope of the present invention. .

Particularly, in the embodiments of the present invention, the CTI 410, the speaker 420, the beacon 430, and the light curtain are described as an example of the monitoring / warning device.

According to the present invention as described above, by using the RFID system to manage the dangerous area around the work machine provides an effect of preventing the safety accident in the workplace. In addition, it provides the advantage of improving productivity and preventing leaks by providing the work orders of authorized workers remotely while controlling the access of visitors and unauthorized workers.

Claims (18)

An RFID tag for identifying a worker's location; An RFID receiver for receiving a signal from the RFID tag; CCTV for acquiring the operating state image of working machine A speaker installed in a hazardous area; A warning light installed in the dangerous area; A workplace management computer electrically connected to the CSI, a speaker, a warning light, and controlling their operation under control of a management server; A management server that receives information from the RFID receiver and the workplace management computer, controls and manages operations of the RFID receiver and the workplace management computer, monitors people entering the workplace and manages entry and exit thereof. Workplace safety management system using RFID. The method of claim 1, The RFID tag is a workplace safety management system using RFID, characterized in that attached to the helmet of the worker. The method of claim 2, The RFID tag is divided into a visitor tag and a field worker tag, and the field worker tag is divided into unauthorized workers and authorized workers and attached to a hard hat. The method of claim 3, wherein Workplace safety management system using RFID, characterized in that it further comprises a light curtain for detecting a person approaching the dangerous area. The method according to any one of claims 1 to 3, The management server uses the RFID information received through the RFID receiver to identify whether the person accessing the dangerous area is a visitor, an unauthorized worker or an authorized worker, and when the person accessing the dangerous area is a visitor or unauthorized worker. Workplace safety management system using RFID, characterized in that to emit a warning light to ring the warning light and prohibit access through the speaker. The method of claim 5, The management server is a workplace safety management system using RFID, characterized in that for transmitting the work instruction when the person approaching the dangerous area is identified as the authorized worker. The method of claim 5, The workplace safety management system using RFID, characterized in that forcibly stops the operation of the work machine if they do not go out of the dangerous area within a certain time after sending the announcement to the visitor and unauthorized workers. The method according to any one of claims 1 to 3, The dangerous area is composed of a second danger area around the work machine and a first danger area adjacent to the second danger area, The management server identifies whether the person who accesses the first danger area is a visitor, an unauthorized worker or an authorized worker by using the RFID information received through the RFID receiver, and the person who accesses the first danger area is a visitor or The workplace safety management system using RFID, characterized in that for non-authorized workers to emit a guide to sound the warning light and prohibit access through the speaker. The method of claim 8, The workplace safety management system using RFID, characterized in that forcibly stops the operation of the work machine if they do not go out of the first danger zone within a certain time after sending the announcement to the visitor and unauthorized workers. The method of claim 8, Workplace safety management system using RFID, characterized in that the visitor and unauthorized workers forcibly stops the operation of the work machine when approaching the secondary danger zone. The method of claim 8, The management server is a workplace safety management system using RFID, characterized in that for transmitting the work instruction content when the person approaching in the secondary danger zone is identified as the authorized worker. Establishing a hazardous area around a work machine in a workplace; Detecting whether a person approaches the dangerous area by using an RFID tag and an RFID receiver; Recognizing whether a person approaching the work area is a visitor or an on-site worker when a person's approach to the danger area is detected; In the division recognition step, when the user is recognized as a visitor to emit a warning light to ring the alarm and prohibit the access, and if it is recognized as a site worker identifying the unauthorized worker or authorized worker; And transmitting a notice to sound an alarm and prohibit access when identified as an unauthorized worker in the identification step. The method of claim 12, The human approach detection step is a workplace safety management method using RFID, characterized in that further comprising detecting that a person approaches the dangerous area by using a light curtain installed in the dangerous area. The method of claim 12, And transmitting a work instruction when the identification information is identified as an authorized worker in the identification step after transmitting the guidement. The method of claim 14, The work instruction sending step is a workplace safety management method using RFID, characterized in that to identify and store the identification ID of the authorized worker. The method according to claim 12 or 13, Safe workplace using RFID, characterized in that forcing the operation of the work machine if they do not go out of the danger zone within a certain time after sending the announcement to the visitor and unauthorized workers. The method according to claim 12 or 13, The dangerous area is composed of a second danger area around the work machine and a first danger area adjacent to the second danger area, Safe workplace using RFID, characterized in that forcing the operation of the work machine if they do not go out of the first danger zone within a certain time after sending the announcement to the visitor and unauthorized workers. The method according to claim 12 or 13, The workplace safety management method using RFID, characterized in that the visitor and unauthorized workers forcibly stops the operation of the work machine when approaching the second dangerous area.

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