KR101246245B1 - Safety system for preventing construction accidents - Google Patents

Abstract

Safety accident prevention system for preventing a safety accident at the construction site according to the present invention, the worker transmitter is attached to the operator to transmit a radio signal, and heavy equipment mounted on the heavy equipment to receive the radio signal from the transmitter for the worker A cost receiver and an alarm device for generating an alarm in response to a signal from said heavy equipment receiver. The receiver for heavy equipment receives a radio signal from the worker transmitter to measure a distance to the worker, and transmits an alarm signal to the alarm device when the measured distance is shorter than a predetermined safety distance. The alarm device generates an alarm when an alarm signal is received from the receiver for heavy equipment. As a result, it is possible to effectively prevent safety accidents due to heavy equipment at the construction site, it is also possible to effectively manage safety and work management for workers and heavy equipment.

Description

Safety accident prevention system of construction site {SAFETY SYSTEM FOR PREVENTING CONSTRUCTION ACCIDENTS}

The present invention relates to a system for preventing a safety accident of a worker at a construction site, and more particularly, to a safety accident prevention system that can prevent the safety accident in advance by using the location information of the worker.

In general, a large number of workers are arranged and performed in various fields in a construction site, and safety accidents are very frequent. Therefore, safety management of workers is very important. However, there are very few managers who manage a lot of workers, so there is a limit for managers to accurately grasp all work situations occurring at construction sites and prevent safety accidents.

Particularly, in a large construction site where heavy equipment and the like are used a lot, the incidence or risk of safety accidents is increased, and thus, a system capable of efficient safety management is required.

As a safety management system at a construction site in this regard, Korean Patent No. 10-0740144 discloses a system for managing safety using an RFID tag (Radio Frequency Identification tag). In this system, the RFID tag is attached to the worker's hard hat and the RFID server is attached to the construction site to manage the worker at the central server. However, the system is focused only on the worker's attendance and location tracking, so it is not expected to be effective enough to prevent workers' safety accidents and respond quickly to accidents.

In addition, as another example of a safety management system at a construction site, Korean Patent Publication No. 10-2009-0089142 discloses a system using a position sensor and a management server based on a wireless signal. This system prevents safety accidents by notifying managers when workers approach the established hazardous areas. However, this system is effective in preventing accidents only in the location where the location sensor is installed, and it has the disadvantage of requiring communication with the management server.

In addition, the conventional safety management system has a problem that can not effectively cope with the risks associated with heavy equipment used in the construction site.

The present invention is to solve the above problems, it is possible to effectively prevent safety accidents due to heavy equipment at the construction site, and also safety accidents at construction sites that can effectively perform safety management and work management for workers and heavy equipment It is an object of the present invention to provide a prevention system.

In order to achieve the above object, a safety accident prevention system for preventing a safety accident at the construction site of the present invention, a worker transmitter for attaching to a worker to transmit a radio signal, and mounted on heavy equipment from the worker transmitter A heavy equipment receiver for receiving a radio signal, and an alarm device for generating an alarm in accordance with the signal from the heavy equipment receiver. The receiver for heavy equipment receives a radio signal from the worker transmitter to measure a distance to the worker, and transmits an alarm signal to the alarm device when the measured distance is shorter than a predetermined safety distance. The alarm device generates an alarm when an alarm signal is received from the receiver for heavy equipment.

Next, a safety accident prevention system for preventing a safety accident at the construction site of the present invention, a worker transceiver for transmitting and receiving a radio signal attached to the operator, and mounted on heavy equipment to receive a radio signal from the transceiver for the worker And a heavy duty transceiver, a warning device for generating an alarm in response to a signal from the receiver for heavy equipment, and a central controller in wireless communication with the worker transceiver and the heavy equipment transceiver. The heavy equipment transceiver receives a radio signal from the worker transceiver to measure the distance to the worker, and when the measured distance is shorter than a predetermined safety distance, and transmits an alarm signal to the alarm device. The alarm device generates an alarm when an alarm signal is received from the receiver for heavy equipment. The central controller receives wireless signals from the transceiver for the worker and the transceiver for the heavy equipment to obtain position information of the worker and the heavy equipment, and monitors and controls the worker and the heavy equipment based on the obtained position information.

In the safety accident prevention system of the present invention, the heavy equipment receiver preferably uses a time of arrival (ToA) or a time difference of arrival (TDoA) method as a method of measuring the distance to the worker.

In addition, the safety accident prevention system of the present invention may further include a plurality of repeaters for relaying wireless communication between the operator transceiver and heavy equipment transceiver and the central controller.

In addition, the present invention is a repeater is equipped with a distance measuring module for measuring the distance between the operator and the heavy equipment, the distance measuring module may be transmitted and received with the central controller by a wireless communication module.

In addition, the present invention is the central controller is a safety accident prevention system characterized in that the operator or heavy equipment driver to directly check the signal transmitted to the central monitoring room and the signal transmitted through the transceiver for the worker and the heavy equipment transceiver To provide.

In addition, the present invention is the central monitoring room to identify the unique ID of the transceiver for the operator included in the signal transmitted from the central controller, the operator or driver for heavy equipment through a text message or alarm alarm broadcast to the operator for the identified unique ID To provide a safety accident prevention system characterized in that the notification to.

The safety accident prevention system of the present invention has the following advantageous effects.

First, it is possible to quickly warn workers and heavy equipment operators of dangerous situations at construction sites, thereby preventing accidents.

In addition, since the location information of the worker and heavy equipment can be obtained in real time, it is possible to effectively execute the work management and safety management for the worker and heavy equipment.

In addition, it is possible to alarm the dangerous situation only by the equipment installed in the operator and the heavy equipment without the central control system, so that the safety management of the construction site can be effectively executed at low cost.

1 is a conceptual diagram schematically showing the configuration of a safety accident prevention system according to a first embodiment of the present invention.
Figure 2 is a block diagram showing the configuration of a safety accident prevention system according to a first embodiment of the present invention.
3 and 4 is a block diagram showing the configuration of a safety accident prevention system according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

(First embodiment)

1 is a schematic conceptual view showing the configuration of a safety accident prevention system according to a first embodiment of the present invention, Figure 2 is a block diagram showing the configuration of a safety accident prevention system according to a first embodiment of the present invention. .

As shown in Figure 1, the safety accident prevention system according to the first embodiment of the present invention, by the transmitter attached to the operator, the receiver and the alarm device attached to the heavy equipment such as excavators or bulldozer, the risk of heavy equipment When entering the area, it is possible to notify heavy equipment operators or operators of dangerous situations.

Specifically, the safety accident prevention system according to the first embodiment of the present invention, as shown in Figure 2, the worker transmitter 110 to be attached to the operator, the heavy equipment receiver 220 mounted on heavy equipment such as excavators And, the alarm device 230 for generating an alarm in accordance with the signal from the receiver 220 for heavy equipment.

The worker transmitter 110 is attached to the body of the worker, generates a predetermined radio signal and transmits to the receiver 220 for heavy equipment. The worker transmitter 110 is configured such that the worker can always carry. Specifically, it may be formed in a structure that can be mounted on a worker's hard hat or belt.

Communication between the worker transmitter 110 and the heavy equipment receiver 220 may use a variety of known wireless communication techniques. For example, a communication technology such as Bluetooth or Zig-bee may be used. In addition, if necessary, the worker transmitter 110 and the receiver 220 for heavy equipment may have an internal power source.

The heavy equipment receiver 220 receives the radio signal from the worker transmitter 110, and measures the distance to the worker. When the measured distance is shorter than the predetermined safety distance, an alarm signal is transmitted to the alarm device 230.

Here, as a method of measuring the distance between the worker transmitter 110 and the receiver 220 for heavy equipment, the received signal strength indication (RSSI) method, the time of arrival (ToA) or the time difference of TDoA (TDoA) Arrival) method can be used. In order to minimize the error of the distance measurement and widen the distance measurement range, it is more preferable to use the ToA or TDoA method rather than the RSSI method.

As such, for measuring the distance, the receiver 220 for heavy equipment may include a processor unit interworking with a communication module.

The alarm device 230 is provided with a warning light or a buzzer, when receiving the alarm signal from the receiver 220 for heavy equipment, by operating the warning light or the buzzer to inform that the worker near.

As described above, in the safety accident prevention system according to the first embodiment of the present invention, since the dangerous situation can be promptly notified to the heavy equipment driver or the operator, the safety accident at the construction site can be effectively prevented.

In addition, it is possible to quickly alert workers and heavy equipment operators about dangerous situations without installing a central control system for controlling workers and heavy equipment, thereby reducing the cost of building a safety management system.

(Second Embodiment)

The safety accident prevention system according to the second embodiment of the present invention further includes a central controller in the system of the first embodiment, and a configuration thereof is shown in FIG.

As shown in Figure 3, the safety accident prevention system according to a second embodiment of the present invention, in addition to the worker transmitter 110, the receiver 220 for heavy equipment, the alarm device 230, the worker receiver 120 And a heavy duty transmitter 210 and a central controller 300. The worker transmitter 110 and the worker receiver 120, the heavy equipment transmitter 210, and the heavy equipment receiver 220 are formed integrally with each other, and include a worker transceiver 100 and a heavy equipment transceiver 200. You may.

The central controller 300 receives radio signals from the transceiver 100 for the worker and the transceiver 200 for the heavy equipment, obtains the location information of the worker and the heavy equipment, and monitors the worker and the heavy equipment based on the acquired location information. And control. That is, the central controller 300 grasps the positional information such as the movement situation or the work position of the worker and the heavy equipment in real time, monitors the work situation of the worker and the heavy equipment, and also, when a dangerous situation occurs, The alarm signal can be notified directly. To this end, the central controller 300 is a communication module capable of wirelessly communicating with the management server 310 for executing work management and safety management of the worker and heavy equipment, and the worker transceiver 100 and the transceiver for heavy equipment 200. And 320.

If the construction site is wide, the distance between the operator transceiver 100 and the heavy equipment transceiver 200 and the central controller 300 may be difficult, the wireless communication between each other. In this case, the repeater 500 may be further installed at a plurality of points on the construction site.

The repeater 500 primarily communicates with the worker transceiver 100 and the heavy equipment transceiver 200, and transmits the result to the central controller 300. The repeater 500 may include a processor unit in addition to the communication module 320 to execute a distance measuring process executed by the receiver 220 for heavy equipment.

That is, based on the signals received from the operator transceiver 100 and the heavy equipment transceiver 200, the repeater 500 may measure the distance between the operator and the heavy equipment, and transmit the result to the central controller 300. have.

In particular, the repeater 500 is equipped with a distance measuring module 510 for measuring the distance between the worker and the heavy equipment, the distance measuring module 510 is transmitted and received by the communication module 320 and the central controller 300 By transmitting the data measured according to the set time between the heavy equipment and the central controller 300 will be able to more effectively prevent safety accidents.

Here, the set time is to set a certain period, such as 30 minutes, 1 hour, 2 hours when the work is going through the heavy equipment to measure the distance between the operator and the heavy equipment by the distance measuring module 510.

In addition, the central controller 300 transmits the detected signal to the central monitoring room 400 when there is no change or insufficient distance between the heavy equipment and the worker despite operating the beacon or the buzzer through the alarm device 230. do.

Here, the central monitoring room 400 identifies the unique ID corresponding to the operator transceiver 100 included in the transmitted signal, and text message to the operator for the identified unique ID, or the current worker or heavy equipment driver directly The operator may be notified by alarm alarm broadcasting for confirmation.

As described above, in the safety accident prevention system according to the second embodiment of the present invention, in parallel with the alarm device 230, the central controller 300 can directly notify the worker and the heavy equipment manager of the dangerous situation. It can effectively prevent safety accidents.

In addition, when using a repeater, even if the construction site is wide, since the central controller 300 can obtain the position information on the worker and heavy equipment, it is possible to prevent safety accidents using this, and work on the worker and heavy equipment Management can also be implemented.

Although the present invention has been described with reference to the above-described preferred embodiments and the accompanying drawings, it is also possible to constitute different embodiments within the spirit and scope of the invention. Therefore, the scope of the present invention is defined by the appended claims, and should be construed as not limited to the specific embodiments described herein.

100: worker transceiver 110: worker transmitter
120: operator receiver 200: heavy equipment transceiver
210: transmitter for heavy equipment 220: receiver for heavy equipment
230: alarm device 300: central controller
310: management server 320: communication module

Claims (7)

delete In the safety accident prevention system to prevent safety accidents at construction sites,
A worker transceiver for attaching to a worker and transmitting and receiving wireless signals,
Including a receiver for heavy equipment mounted on the heavy equipment to receive a radio signal from the transceiver for the operator, and using a time of arrival (ToA) or time difference of arrival (TDoA) method as a method for measuring the distance to the operator Heavy equipment transceiver,
An alarm device for generating an alarm in response to a signal from the receiver for heavy equipment;
A management server which wirelessly communicates with the worker transceiver and the heavy equipment transceiver, and executes work management and safety management of the worker and heavy equipment so as to notify an alarm signal directly to the worker or the heavy equipment driver when a dangerous situation occurs; It comprises a central controller including a communication module capable of wireless communication with the transceiver and the transceiver for heavy equipment,
The heavy equipment transceiver receives a radio signal from the worker transceiver to measure the distance to the worker, and if the measured distance is shorter than a predetermined safety distance, and transmits an alarm signal to the alarm device,
The alarm device generates an alarm when the alarm signal is received from the receiver for heavy equipment,
The central controller receives radio signals from the transceiver for the worker and the transceiver for the heavy equipment to obtain position information of the worker and the heavy equipment, and monitors and controls the worker and the heavy equipment based on the obtained position information.
A distance measuring module for relaying wireless communication between the worker transceiver and the heavy equipment transceiver and the central controller and measuring a distance between the worker and the heavy equipment is mounted, and the distance measuring module is transmitted and received with the central controller by the wireless communication module. Safety accident prevention system, characterized in that configured to include a repeater.
delete delete delete The method of claim 2,
The central controller is a safety accident prevention system characterized in that the operator or heavy equipment driver to directly check the signal transmitted through the operator transceiver and the heavy equipment transceiver to the central monitoring room.
The method according to claim 6,
The central monitoring room identifies the unique ID of the operator's transceiver included in the signal transmitted from the central controller, and notifies the operator or the driver for heavy equipment through a text message or alarm alarm broadcast to the operator for the identified unique ID. Accident prevention system.

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