KR101490373B1 - Safety terminal and safety managing system for detecting worker's accident in construction site and industries - Google Patents

Abstract

The present invention relates to a safety terminal and a safety management system for detecting accidents which occurs to workers. The present invention can ensure a safety of workers who work in a construction site and an industrial site. The safety terminal for detecting accidents occurring to workers in a construction site and an industrial site, which can be used by a worker by being attached to a body of the worker comprises: a vibration sensor unit which detects whether the worker moves; a tilt sensor unit which detects whether the worker is in danger by checking an inclined angle of the worker from a horizontal plane: a local area communications unit which communicates with the outside; an emergency switch for the worker to directly transmit a danger signal to the outside; a speaker output unit which outputs various types of signals; and a control unit which controls the units. The tilt sensor unit detects a danger signal of the worker when the worker maintains an inclined angle within a predetermined angle range to the horizontal plan during a predetermined time. The control unit detects whether the worker is in danger from the vibration sensor unit and the tilt sensor unit, and sends the danger signal of the worker through the local area communications unit. Therefore, it is possible to detect the danger signal of the worker so as to ensure the safety of workers who work in the industrial site and to exactly send the dangerous signal of the worker without error in communications.

Description

Technical Field [0001] The present invention relates to a safety terminal and a safety management system for a construction work site and an industrial site,

The present invention relates to a safety terminal and a safety management system for recognizing a worker disaster at a construction site and an industrial site to ensure the safety of workers working in various industrial sites such as the construction industry.

In general, the construction industry is a labor-intensive industry in which a large number of workers are put into operation at the same time, and systematic and effective safety management of the workforce is of the utmost importance.

However, in the conventional construction site, safety accidents occur frequently due to various environments inherent in the site itself and minor negligence of workers, resulting in a fatal problem of losing valuable human resources.

Especially, in the construction site, workers in various fields are assigned to various tools to perform their own tasks. In the area where the number of managers is relatively small compared to the number of such workers and the control and management of the field manager is limited in outdoor work , Safety and safety management for construction workforce and ineffective manpower management cause problems such as increase of overall construction cost, decrease of productivity, and extension of construction period.

Accordingly, a "worker safety management system " (Patent Laid-Open No. 10-2012-0096977) has been proposed in order to efficiently manage manpower and safety management at work sites.

The safety management system includes a safety sensor mounted on a safety helmet of a worker, a plurality of information transmitters installed in a safety guideline of a work site to transmit sensing information applied from the safety sensor, An information collector for collecting information of the operator's senses; a risk manager for collecting the risk signals from the on-site manager for recognizing the safety state of the operator based on the sensed information of the information collector and applying a danger signal, And a central manager for managing the safety state of the entire worker.

This safety management system identifies the danger signal of a worker from a safety sensor mounted on a worker's safety helmet and provides a basic concept of managing the safety state of the entire worker on the basis thereof.

However, in order to collect more accurate information from the operator, there is a need for a concrete method of collecting the accurate risk signal according to various situations of the operator and a means for coping with various problems that may appear in the process of collecting the danger signal.

Korean Patent Publication No. 10-2012-0096977

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method and apparatus for efficiently recognizing a danger signal of an operator in order to secure the safety of an operator working in an industrial field, And to provide a safety terminal and a safety management system for recognizing a worker disaster in a field or an industrial field.

According to an aspect of the present invention, there is provided a safety work terminal for recognizing a worker's disaster in a construction site and an industrial site, the safety terminal including a vibration sensor unit ; A tilt sensor unit for detecting a risk of an operator from an angle at which the operator is inclined with respect to a horizontal plane; A short range communication unit for communicating with the outside; An emergency switch for the operator to transmit the danger signal directly to the outside; A speaker output unit for outputting various signals; A control unit for controlling the devices; Wherein the tilt sensor part recognizes the operator as a danger signal when the operator maintains an angle inclined within a predetermined angle with respect to the horizontal plane for a predetermined time and the control part detects the risk of the operator from the vibration sensor part and the tilt sensor part And transmits the danger signal of the operator to the outside through the local communication unit.

The control unit may generate a preliminary sound through the speaker output unit after a predetermined time elapses from the time when the last vibration is recognized by the vibration sensor unit when the vibration is stopped by the operator, When there is no response, an alarm sound is generated through the speaker output unit and the risk signal of the operator is transmitted to the outside through the local communication unit.

The control unit may generate a preliminary sound through the speaker output unit when the operator maintains an angle inclined within a predetermined angle with respect to the horizontal plane for a predetermined time, and, when there is no response from the operator for a predetermined time from the preliminary sound generation, A warning sound is generated through the speaker output unit and the danger signal of the operator is transmitted to the outside through the local communication unit. The tilt sensor unit does not detect the risk of the operator if there is a response from the operator within a predetermined time from the time of occurrence of the preliminary sound , And when the angle of inclination of the operator with respect to the horizontal plane exceeds a predetermined angle, the operator starts to detect danger again.

In addition, the short-range communication unit performs unidirectional communication through the first channel and the second channel, periodically transmits a signal indicating whether the safety terminal is operated through the first channel, And a danger signal transmitted directly by the operator is transmitted to the outside via the second channel.

A CDMA communication unit for remote communication; And a danger signal transmitted directly by the operator is also transmitted to the outside through the CDMA communication unit.

According to another aspect of the present invention, there is provided a safety management system for recognizing a worker disaster in a construction site and an industrial site, the safety management system comprising: a safety terminal attached to a body of each worker to detect a danger of the worker; A plurality of information transmitters installed at the worksite to transmit the detected information from the safety terminal; A reader for collecting information from the plurality of information transmitters; Wherein the safety terminal comprises: a channel A, which is a unidirectional communication channel periodically transmitting an A signal indicating whether the safety terminal is operating, to the information transmitter; a C signal as a danger signal of the operator; And a C-channel, which is a unidirectional communication channel for receiving a C'-signal, which is a danger signal of an operator using, and the information transmitter transmits the C-signal to the reader and another safety terminal And the reader receives the C signal from the information transmitter and the safety terminal.

In addition, the information transmitter or the reader transmits a C "signal as a dangerous signal at the worksite, and the C channel of the safety terminal receives the C" signal transmitted from the information transmitter or the reader, Generates an alarm sound for the C signal, the C 'signal, and the C "signal.

Also, the information transmitter includes a sensor unit for detecting a risk of a work site, and the information transmitter transmits the C "signal when a danger signal is detected from the sensor unit.

Also, a danger signal transmitter installed at the work site to send a D signal indicating that it is a dangerous area; A central manager for collecting information from the reader; Wherein the safety terminal generates an alarm sound in response to the D signal received through the C channel and informs the operator of the alarm signal, and the safety terminal adds information of the safety terminal to the received D signal Signal to the information transmitter via the channel A, and the information transmitter receives the signal D 'from the safety terminal, and transmits the signal D' To the reader, and the reader transmits the D 'signal to the central manager.

Also, the central manager transmits the D 'signal to the safety manager's mobile phone.

According to another aspect of the present invention, there is provided a safety management system for recognizing a worker disaster in a construction site and an industrial site, including: a safety terminal attached to a body of each worker; A danger signal transmitter installed at the work site to send a D signal indicating that the area is dangerous; An information transmitter installed at a work site to transmit information detected from the safety terminal; A reader for collecting information from the information transmitter; A central manager for collecting information from the reader; Wherein the safety terminal includes an A channel that is a unidirectional communication channel periodically transmitting an A signal indicating whether the safety terminal is operated to the information transmitter and a C channel that is a unidirectional communication channel that receives the D signal, , The safety terminal generates an alarm sound when receiving the D signal through the C channel and informs the operator of the alarm signal. The safety terminal adds information of the safety terminal to the received D signal, Signal to the information transmitter via the channel A, and when the information transmitter receives the signal D 'from the safety terminal, it transmits the signal D' to the reader, The reader transmits the D 'signal to the central manager.

According to the present invention, in order to ensure the safety of the workers working in the industrial field, it is possible to efficiently recognize the danger signal of the worker and to transmit the danger signal of the worker accurately without any communication errors. A safety terminal and a safety management system can be provided.

FIG. 1 is a diagram illustrating a configuration of a workforce disaster recognition security terminal according to an embodiment of the present invention.
FIG. 2 is a view for explaining the operation of the tilt sensor in the safety terminal of FIG. 1. FIG.
3 is a view showing an embodiment in which the operator attaches the safety terminal according to the embodiment of the present invention.
4 is a diagram showing an embodiment in which the safety terminal of the present invention operates according to the state of an operator.
5 is a view showing an embodiment in which the safety terminal of the present invention operates according to the degree of injury of an operator.
6 is a diagram showing an embodiment in which the safety terminal of the present invention operates when an operator is in emergency.
7 is a diagram showing the configuration of an information transmitter and a reader according to an embodiment of the present invention.
FIG. 8 is a diagram showing a configuration of a worker disaster recognition safety management system according to an embodiment of the present invention for transmitting a danger signal of an operator.
9 is a diagram showing a configuration of a workforce disaster recognition safety management system according to an embodiment of the present invention for transmitting a risk of a worksite.
FIG. 10 is a view showing a configuration of a workforce disaster recognition safety management system according to an embodiment of the present invention for preventing a safety accident when a worker enters a dangerous area.
11 is a diagram showing the configuration of the danger signal transmitter of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. The same reference numerals in the drawings denote like elements throughout the drawings.

FIG. 1 is a diagram showing a configuration of a workforce disaster recognition safety terminal according to an embodiment of the present invention. FIG. 2 is a view for explaining the operation of the tilt sensor in the safety terminal of FIG. 1. FIG. 3 is a view showing an embodiment in which the operator attaches the safety terminal according to the embodiment of the present invention. 4 is a diagram showing an embodiment in which the safety terminal of the present invention operates according to the state of an operator. 5 is a view showing an embodiment in which the safety terminal of the present invention operates according to the degree of injury of an operator. 6 is a diagram showing an embodiment in which the safety terminal of the present invention operates when an operator is in emergency.

The worker disaster recognition safety terminal (hereinafter referred to as safety terminal) 100 of the present invention is used to detect the danger of a worker by attaching to a worker's body. The safety terminal 100 includes a vibration sensor 110, a tilt sensor 120, a short range communication unit 130, a CDMA communication unit 140, an emergency switch 150, a speaker output unit 160, a controller 170, .

The vibration sensor unit 110 detects whether the operator is moving. The vibration sensor unit 110 may be constituted by a tilt sensor having two or more recognition directions, for example, the x-axis is horizontal and the y-axis is vertical in order to detect the movement of the operator. The vibration sensor unit 110 recognizes the vibration signal as a danger signal of the operator when the vibration caused by the movement of the worker is not present for a predetermined time (for example, 30 seconds).

The data output from the vibration sensor unit 110 is transmitted to the controller 170. The controller 170 receives a counter based on a starting point of data generated when an operator's motion occurs, Lt; / RTI > When the vibration is stopped, a preliminary sound is generated through the speaker output unit 160 after a predetermined time, for example, 30 seconds after the last vibration is recognized.

For example, the tilt sensor unit 120 is composed of a sensor that recognizes the directionality such as a gyroscope sensor. For example, the tilt sensor unit 120 has two or more recognition directions, that is, the Y-1 axis is on the front and the Y-2 axis is on the left and right. The tilt sensor unit 120 detects the risk of the operator from an angle at which the operator is inclined with respect to the horizontal plane. As shown in FIG. 2, when the operator holds an inclined angle of, for example, within ± 30 degrees with respect to the horizontal plane, it is recognized as a danger signal of the operator.

The data output from the tilt sensor unit 120 is transmitted to the controller 170. The controller 170 receives a counter at a time when data indicating an inclined angle within ± 30 degrees with respect to the horizontal plane is generated, The counter is stopped and the counter is initialized at the same time when data indicating that the operator has an angle in excess of 30 [deg.] With respect to the horizontal plane is generated. The control unit 170 generates a preliminary sound through the speaker output unit 160 when data representing an inclined angle within ± 30 ° with respect to the horizontal plane occurs for a predetermined time (for example, 30 seconds).

The local communication unit 130 enables the safety terminal 100 to perform local communication with the outside. The short-range communication unit 130 can communicate via Bluetooth, Zigbee, or the like. For example, the short-range communication unit 130 can communicate using the ZigBee method.

The safety terminal 100 of the present invention is configured to perform unidirectional communication through two channels and not communicate with the safety terminals 100. [ This is to prevent a communication error from occurring due to non-receipt, incomplete reception, offset or the like due to communication between the safety terminals 100, thereby reliably transmitting a danger signal of the operator.

To this end, the short-range communication unit 130 is divided into a first channel (A channel) for transmission and a second channel (C channel) for reception. The A channel periodically transmits a signal (A signal) indicating whether the safety terminal 100 is operated or not, such as the terminal number and the remaining battery level. The C channel receives the danger signal of the operator using the other safety terminal 100 outside.

The danger signal of the operator using the safety terminal 100 is not transmitted to the A channel which is the originating channel but is transmitted to the C channel which is the receiving channel. This is to prevent a communication error that occurs when a risk signal of an operator is periodically transmitted to an A channel through which communication is performed.

The CDMA communication unit 140 enables the safety terminal 100 to perform remote communication with the outside. ZigBee signals, which are short-range communications for a wide range of construction sites (for example, road works) and industrial sites, may not be delivered to the control room. In this case, the danger signal of the operator can be notified to the situation room by the CDMA communication unit 140 through the long distance communication. The CDMA communication unit 140 does not operate in a general work site with a narrow range.

The emergency switch 150 is used to transmit a danger signal directly to the outside when an emergency occurs while the operator is conscious. The emergency switch 150 can also be used for releasing an emergency situation by an operator pressing a preliminary sound to check whether an operator is in an emergency situation.

The speaker output unit 160 outputs various signals such as a preliminary sound for confirming an emergency situation of an operator and an emergency sound for indicating an emergency situation of the operator.

Referring to FIG. 3, the worker 10 performs work while the safety terminal 100 is attached. The safety terminal 100 determines whether the operator 10 is dangerous from the vibration sensor unit 110 and the tilt sensor unit 120 and transmits the danger signal of the worker 10 to the outside through the short range communication unit 130. While the worker 10 is working, vibration is always detected by the vibration sensor unit 110. Since the worker 10 normally works in a state where the upper body of the worker 10 stands up, the tilt sensor unit 120 detects the state of the worker 10 It is judged as normal.

Referring to Fig. 4, there is a case where the worker 10 is working in a state (A) lying down. In this case, the vibration sensor unit 110 is determined to be normal, but the tilt sensor unit 120 is determined to be abnormal because the operator maintains the tilted angle within ± 30 degrees with respect to the horizontal plane. Accordingly, after the abnormal signal is generated in the tilt sensor unit 120, the safety terminal 100 generates a preliminary sound through the speaker output unit 160 after waiting for 30 seconds, for example, for about 10 seconds do.

When the operator 10 receives the preliminary sound in the lying state B and responds by depressing the emergency switch 150 after that, the detection of the tilt sensor unit 120 is ignored thereafter, and only the detection of the vibration sensor unit 110 .

Next, as shown in a general state (C), when the worker 10 is lying and working, the state of the tilt sensor unit 120 is initialized to start the detection again, and the vibration sensor unit 110 continues to detect State.

Referring to FIG. 5, when the worker 10 is injured in a general state (A), the detection of the vibration sensor unit 110 and the tilt sensor unit 120 normally operates.

In this case, the operator 10 can press the emergency switch 150, for example, for 3 seconds, to send the emergency out through the C channel.

In the normal state B, the worker 10 is in a state of being in a state of being injured and the detection of the vibration sensor unit 110 and the tilt sensor unit 120 normally operates.

In this state, the worker 10 judges that the injury is not serious, and can press the emergency switch 150 again for 3 seconds, for example, to release the emergency.

Accordingly, in the normal state C, the worker 10 is normally working, and the detection of the vibration sensor unit 110 and the tilt sensor unit 120 normally operates.

Referring to FIG. 6, when the worker 10 is conscious but is seriously injured in the lying state A, the vibration sensor unit 110 is detected as normal due to the movement of the worker 10, The tilt sensor unit 120 determines that the tilt sensor unit 120 is abnormal.

If the state of the tilt sensor unit 120 being abnormal is maintained for 30 seconds, for example, the control unit 170 generates a preliminary sound for 10 seconds, and if there is no response from the worker 10 during that time, And sends a danger signal through the C channel.

When the worker 10 is lying in a lying state without consciousness in the lying state B, there is no movement of the worker 10 and the vibration sensor unit 110 is also detected as abnormal and the tilt sensor unit 120 is also abnormal Is detected.

If the state is kept for 30 seconds, for example, the controller 170 generates a preliminary sound for 10 seconds. If there is no response from the worker 10 in the meantime, the controller 170 determines that the situation is an emergency, .

In the expected state C, when the worker 10 is unconscious but is expected to stand on a supporting portion such as the column 1, the vibration sensor portion 110 is detected as abnormal due to no movement of the worker 10, 120 are judged to be normal since the upper body of the worker 10 is standing up.

If the state is kept for 30 seconds, for example, the controller 170 generates a preliminary sound for 10 seconds. If there is no response from the worker 10 in the meantime, the controller 170 determines that the situation is an emergency, .

The safety terminal 100 of the present invention detects an abnormal situation in the vibration sensor unit 110 or the tilt sensor unit 120 or when the operator 10 directly presses the emergency switch 150, At the same time, it sends a danger signal to the outside through the C channel.

However, due to the nature of the construction site and the industrial site, the noise is large and the distance is far away, so that an emergency sound generated from the safety terminal 100 of one worker may not be heard by other workers nearby. In case of emergency of one worker, it is necessary to help other workers. Therefore, the danger signal of one worker 10 is configured to be received through the C channel in the safety terminal 100 of another worker.

The security terminal 100 of the operator who receives the danger signal of another worker working on the same site through the C channel outputs a notification sound through the speaker output unit 160 as well.

As described above, the safety terminal 100 of the present invention is configured such that the short-range communication unit 130 performs unidirectional communication through two channels and the safety terminals 100 at the same worksite do not communicate with each other. Accordingly, it is possible to prevent a communication error from occurring due to non-receipt, incomplete reception, offset, etc. of the dangerous signal due to communication between the safety terminals 100, and to prevent a communication error from occurring, It is possible to receive it completely. The C channel of the safety terminal 100 basically performs unidirectional communication to receive a danger signal of an operator from the safety terminal 100 of another operator and is used to transmit a danger signal to the outside in an emergency situation of an operator .

In addition, since the safety terminal 100 of the present invention generates a preliminary sound when it is judged to be an emergency and recognizes the emergency sound when there is no response from the operator, the safety terminal 100 recognizes the non- It is possible to prevent an error in recognizing a situation and sending out a danger signal.

7 is a diagram showing a configuration of an information transmitter and a reader according to an embodiment of the present invention. FIG. 8 is a diagram showing a configuration of a workforce disaster recognition safety management system according to an embodiment of the present invention for transmitting a danger signal of an operator. FIG. 9 is a diagram showing a configuration of a workforce disaster recognition safety management system according to an embodiment of the present invention for transmitting a risk of a worksite.

The worker disaster recognition safety management system of the present invention comprises a safety terminal 100, an information transmitter 200, and a reader 300.

The configuration of the safety terminal 100 is as described above. The safety terminal 100 is attached to each of the workers' bodies in order to detect the danger of all the workers working at the nearby sites.

The information transmitter 200 is installed at a plurality of work sites to transmit information detected from the safety terminal 100 to the safety terminal 100 of the reader 300 or other workers. The information transmitter 200 may use, for example, an LBS AP.

To this end, the information transmitter 200 includes a communication unit 210, a control unit 220, an input unit 230, and a sensor unit 240.

The communication unit 210 can communicate with, for example, ZigBee. The communication unit 210 amplifies a signal (A signal) indicating whether or not the safety terminal 100 is periodically transmitted from the safety terminal 100 of the worker and transmits the amplified signal to the reader 300 through the B channel.

In addition, the communication unit 210 receives the danger signal transmitted from the safety terminal 100 of the operator through the C channel, transmits the signal to the reader 300, and transmits the signal to the safety terminal 100 of another operator.

The sensor unit 240 detects a dangerous situation at the worksite such as a collapse of a work site, leakage of noxious gas around a work site, and the like. When a dangerous situation occurs at the work site from the sensor unit 240, the danger signal C signal can be transmitted to the safety terminal 100 of the surrounding workers through the C channel. Accordingly, workers who receive the C signal through the C channel of the safety terminal 100 can quickly evacuate.

The reader 300 collects information from a plurality of information transmitters 200. The reader 300 may include a communication unit (e.g., ZigBee) 310, a control unit 320, and a communication unit (e.g., a LAN) The reader 300 is connected to the central manager (or the web server) 400 via the Internet, and the information stored in the central manager 400 can be managed through the management room 500.

The reader 300 receives the amplified signal transmitted through the information transmitter 200 through the B channel without directly receiving the A signal transmitted from the safety terminal 100 and transmits the C signal as the danger signal of the operator to the C channel Lt; / RTI > Also, when an emergency signal is sent to the workers in the management room 500 (for example, when a construction site is blasted, evacuation signals due to other schedules, or an abnormal signal due to automation measurement) are sent, a danger signal is transmitted through the reader 300 .

Hereinafter, with reference to FIG. 8 and FIG. 9, a communication configuration according to the safety management system for recognizing worker disaster recognition of the present invention will be described.

Referring to FIG. 8, for example, an A signal as to whether or not the safety terminal 100 of the worker 10 working in the first tool 10 is operated is periodically transmitted to the information transmitter 200. When the information transmitter 200 receives the A signal through the A channel, the information transmitter 200 amplifies the A signal and transmits the amplified signal to the reader 300 through the B channel. The reader receives information about the A signal over the B channel. From the signal A, the reader 300 (or the central manager 400) sees that the worker 10 is positioned around the first tool.

When the worker 10 directly sends a danger signal or an emergency situation is detected by the control unit of the safety terminal 100 at the time of an emergency of the worker 10, To the safety terminal 100, the information transmitter 200, and the reader 300 of another worker through the C channel of the worker. If necessary, the signal C is also transmitted to the CDMA base station 350 through the CDMA communication unit of the safety terminal 100 capable of long-distance communication. The CDMA base station 350 that has received the C signal can transmit information through the management room 500 to structure the operator.

A risk signal C 'indicating an emergency situation of the worker 20 using another safety terminal 100 around the first tool can be received through the C channel of the safety terminal 100 of the worker 10. [

When the information transmitter 200 receives the C signal indicating the risk of the operator 10 via the C channel, the information transmitter 200 transmits the C signal to the other worker 20 via the C channel and also transmits it to the reader 300.

The reader 300 may receive the C signal from the information transmitter 200 or may receive the C signal directly from the safety terminal 100 of the worker 10. [

In this way, the risk signal of any one worker 10 can be communicated to the other worker 20, the information transmitter 200 and the reader 300 in the vicinity.

The worker 20 having received the danger signal of the other worker 10 can search around the tool 1 to rescue the worker 10 in an emergency situation. Even if another worker 20 does not recognize an emergency situation in a surrounding situation, a danger signal is transmitted to the management room 500 via the reader 300, and the worker 10 in an emergency can be rescued.

As described above, the emergency situation of a worker 10 is transmitted through various routes and can be quickly structured. In addition, the danger signal is transmitted to the communication using a two-channel communication, 10) may not be transmitted.

Referring to FIG. 9, the sensor unit 240 in the information transmitter 200 can detect a dangerous situation such as a collapse of a worksite, leakage of noxious gas around a work site, etc., around the tool 1. In this case, the information transmitter 200 transmits a C "signal, which is a dangerous signal at the worksite, to the workers 10 and 20 around the tool 1, and the C"

The C "signal, which is a danger signal at the shop floor, may be transmitted directly to the operator around the first tool through the reader 300.

The operators 10 and 20 around the first tool receive the C "signal through the C channel of the safety terminal 100. The safety terminal 100 receiving the " C" signal generates an audible alarm, C "signal to the other safety terminal 100 in the vicinity.

In addition, the safety terminal 100 generates an alarm sound (or a notification sound) when receiving the C signal, the C 'signal, and the C' signal, thereby allowing the workers 10 and 20 to recognize the emergency situation.

Thus, the dangerous situation around the work site can be transmitted to the workers 10 and 20 working on the field through the information transmitter 200 or the reader 300, so that the workers 10 and 20 can quickly evacuate.

FIG. 10 is a view showing a configuration of a workforce disaster recognition safety management system according to an embodiment of the present invention for preventing a safety accident when a worker enters a dangerous area. 11 is a diagram showing the configuration of the danger signal transmitter of Fig.

Hereinafter, a communication structure according to the safety management system for recognizing a worker disaster according to an embodiment of the present invention for preventing a safety accident when an operator enters a dangerous area will be described with reference to FIG. 10 and FIG.

In construction or industrial sites, there are dangerous areas where workers, such as heavy equipment work areas and perforated areas, enter. If a worker accidentally enters this dangerous area, it can lead to a serious safety accident. In this embodiment, when a worker enters a dangerous area, a safety management system for preventing a safety accident is provided.

The worker disaster recognition safety management system of the present invention includes a safety terminal 100, a danger signal transmitter 600, an information transmitter 200, a reader 300, and a central manager 400. The work man-made disaster recognition safety management system of this embodiment is configured to transmit the danger signal of the above-mentioned worker or to transmit the risk of the work site, and to inform the operator when entering the dangerous area, Respectively.

The configuration of the safety terminal 100 is as described above. The safety terminal 100 is attached to each of the workers' bodies in order to detect the danger of all the workers working at the nearby sites.

The hazard signal transmitter 600 sends a D signal indicating that the area is a hazardous area 2, for example, the area where the heavy equipment 1 is working. The danger signal transmitter 600 may include a communication unit 610, a control unit 620, and an input unit 630.

The communication unit 610 transmits a D signal indicating the danger zone 2, for example, in a ZigBee manner. By adjusting the DB of the hazard signal transmitter 600, the range of radii in which the D signal can be received can be adjusted. For example, the DB of the danger signal transmitter 600 may be adjusted according to the case where the radius of the dangerous area 2 is 5 m, 10 m, 20 m, 50 m, so that the D signal is transmitted from the danger signal transmitter 600 at a radius of 5 m, , 20 m, and 50 m, respectively.

The information transmitter 200 is installed at a plurality of work sites to transmit information detected from the safety terminal 100 to the safety terminal 100 of the reader 300 or other workers. The information transmitter 200 may use, for example, an LBS AP. The configuration of the information transmitter 200 is as described above.

The reader 300 collects information from the information transmitter 200. The reader 300 is connected to the central manager 400 through the Internet and the information stored in the central manager 400 can be managed through the management room 500. The configuration of the reader 300 is as described above.

The central manager 400 collects information from the reader 300 and manages the safety of the operator based on the information. The central manager 400 can store, analyze, and deliver information received from the reader 300 to the outside.

For example, the A signal of whether or not the terminal number of the safety terminal 100 of the worker 10 working in the first tool, the remaining battery level, etc., is periodically transmitted to the information transmitter 200, and the information transmitter 200 A signal to the reader 300 through the B channel. The reader 300 receives information on the A signal on the B channel. From the signal A, the reader 300 (or the central manager 400) sees that the worker 10 is positioned around the first tool.

When the operator 10 having the safety terminal 100 enters the dangerous area 2, the safety terminal 100 receives the D signal transmitted from the danger signal transmitter 600 through the C channel. At this time, the safety terminal 100 generates an alarm sound through the speaker output unit. The operator 10 hears the alarm sound generated from the safety terminal 100 and recognizes that he / she has entered the dangerous area 2 and can move out of the dangerous area 2.

The safety terminal 100 adds D 'to the received D signal to allow the safety terminal 100 to know that the specific safety terminal 100 has entered the dangerous area 2 by adding information (terminal number, battery remaining amount, etc.) And transmits the signal to the information transmitter 200 through the A channel. The reason for separating the channel (C channel) that receives the D signal and the channel (A channel) that sends the A signal or D 'signal is to prevent a communication error from occurring due to missing or incomplete reception or cancellation of the signal to be.

The information transmitter 200 receives the D 'signal from the safety terminal 100 via the A channel, amplifies the D' signal, and transmits it to the reader 300 through the B channel.

The reader 300 receives the D 'signal over the B channel. Next, the reader 300 transmits the D 'signal to the central manager 400.

The central manager 400 may send the signal D 'to the terminal of the safety manager 50 (for example, a cellular phone). For example, the signal D 'may be transmitted to the mobile phone of the safety manager 50 in the form of a text message informing which worker 10 has entered the hazardous area 2.

The safety manager 50 may take additional measures to protect the safety of the worker 10 upon receipt of a signal D 'indicating that the particular worker 10 has entered the hazardous area 2.

As described above, in the safety management system of this embodiment, when the worker 10 enters the dangerous area 2, the safety terminal 100 notifies the worker 10 of the alarm sound, . ≪ / RTI >

The signal D 'indicating that the worker 10 has entered the dangerous area 2 is transmitted to the central manager 400 via the information transmitter 200 and the reader 300. The central manager 400 may forward information related to the D 'signal to the terminal of the security manager 50.

The D 'signal is transmitted to the central manager 400 to take necessary actions by the person who manages the central manager 400 or the central manager 400, It is possible to take additional measures to protect safety. Therefore, even if the operator 10 does not recognize the alarm sound generated from the safety terminal 100, it is possible to protect the safety of the worker 10 secondarily.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention will be.

10, 20: Worker
100: Worker disaster recognition safety terminal
110: vibration sensor unit
120: tilt sensor unit
130:
131: channel A
132: C channel
140: CMDA communication section
150: Emergency switch
160: speaker output section
170:
200: Information Transmitter
210:
220:
230: Input unit
240:
300: reader
350: CDMA base station
400: Central Manager
500: Management Room
600: danger signal transmitter

Claims (12)

A work terminal disaster recognition safety terminal for a construction site or an industrial site configured to be attached to a body of an operator,
A vibration sensor unit for detecting whether a worker is moving;
A tilt sensor unit for detecting a risk of an operator from an angle at which the operator is inclined with respect to a horizontal plane;
A short range communication unit for communicating with the outside;
An emergency switch for the operator to transmit the danger signal directly to the outside;
A speaker output unit for outputting various signals;
A control unit for controlling the devices;
Lt; / RTI >
The tilt sensor unit recognizes the danger signal of the operator when the operator holds the tilt angle within a predetermined angle with respect to the horizontal plane for a predetermined time,
Wherein the control unit judges the danger of the operator from the vibration sensor unit and the tilt sensor unit and sends the danger signal of the worker to the outside through the short range communication unit. The method according to claim 1,
Wherein the control unit generates a preliminary sound through the speaker output unit after a predetermined time elapses after the last vibration is recognized by the vibration sensor unit when the vibration is stopped from the operator, And generates a warning sound through the speaker output unit and transmits a danger signal of the operator to the outside via the local communication unit. 3. The method of claim 2,
Wherein the control unit generates a preliminary sound through the speaker output unit when an operator maintains an angle inclined by a predetermined angle with respect to a horizontal plane for a predetermined period of time and, when there is no response from an operator for a predetermined period of time after the preliminary sound is generated, Generates an alarm sound through the local communication unit, transmits a danger signal of the operator to the outside through the local communication unit,
The tilt sensor unit does not detect the risk of the operator if there is a response from the operator within a predetermined time from the time of occurrence of the preliminary tone, and when the angle of tilt of the operator with respect to the horizontal plane exceeds a predetermined angle, Worker disaster recognition safety terminal. The method according to claim 1,
Wherein the short-range communication unit performs unidirectional communication through the first channel and the second channel,
A signal periodically transmitting a signal indicating whether the safety terminal is operated through the first channel,
Receives a danger signal of an operator using an external safety terminal through the second channel,
Wherein the danger signal transmitted directly by the operator is transmitted to the outside through the second channel. 5. The method according to any one of claims 1 to 4,
A CDMA communication unit for telecommunication;
Further comprising:
And a danger signal transmitted directly by the operator is transmitted to the outside through the CDMA communication unit. In a safety management system for recognizing a worker disaster at a construction site or an industrial site,
A safety terminal attached to the body of each worker to detect a danger of the worker;
A plurality of information transmitters installed at the worksite to transmit the detected information from the safety terminal;
A reader for collecting information from the plurality of information transmitters;
Lt; / RTI >
The safety terminal includes an A channel, which is a unidirectional communication channel periodically transmitting an A signal indicating whether the safety terminal is operating, to an information transmitter, and an A channel, which is a unidirectional communication channel, And a C channel, which is a unidirectional communication channel for receiving a signal C 'as a danger signal,
Wherein the information transmitter, upon receiving the C signal from the safety terminal, transmits the C signal to the reader and to the other safety terminal,
And the reader receives the C signal from the information transmitter and the safety terminal. The method according to claim 6,
The information transmitter or the reader may send a C "
The C channel of the security terminal receives the C "signal from the information transmitter or the reader,
And the safety terminal generates an alarm sound for the C signal, the C 'signal, and the C "signal. 8. The method of claim 7,
The information transmitter includes a sensor unit for detecting a risk of a worksite,
Wherein the information transmitter transmits the C "signal when a danger signal is detected from the sensor unit. The method according to claim 6,
A danger signal transmitter installed at the work site to send a D signal indicating that the area is dangerous;
A central manager for collecting information from the reader;
Further comprising:
When the safety terminal receives the D signal through the C channel, the safety terminal generates an alarm sound to inform the operator of the alarm, and the safety terminal adds information of the safety terminal to the received D signal, Signal to the information transmitter via the A channel,
The information transmitter transmits the D 'signal to the reader upon receiving the D' signal from the safety terminal,
And the reader transmits the D 'signal to the central manager. 10. The method of claim 9,
And the central manager transmits the D 'signal to the safety manager's mobile phone. In a safety management system for recognizing a worker disaster at a construction site or an industrial site,
A safety terminal attached to the body of each worker;
A danger signal transmitter installed at the work site to send a D signal indicating that the area is dangerous;
An information transmitter installed at a work site to transmit information detected from the safety terminal;
A reader for collecting information from the information transmitter;
A central manager for collecting information from the reader;
Lt; / RTI >
Wherein the safety terminal includes an A channel as a unidirectional communication channel periodically transmitting an A signal indicating whether the safety terminal is operating to the information transmitter and a C channel as a unidirectional communication channel for receiving the D signal,
When the safety terminal receives the D signal through the C channel, the safety terminal generates an alarm sound to notify the operator, and the safety terminal adds information of the safety terminal to the received D signal, D 'signal to the information transmitter via the A channel,
The information transmitter transmits the D 'signal to the reader upon receiving the D' signal from the safety terminal,
And the reader transmits the D 'signal to the central manager. 12. The method of claim 11,
And the central manager transmits the D 'signal to the safety manager's mobile phone.

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