KR102650832B1 - Smart safety device and smart safety system to prevent falls at construction sites - Google Patents

Abstract

The present invention relates to smart safety equipment for preventing fall accidents at construction sites. The smart safety equipment for preventing fall accidents at construction sites according to an embodiment of the present invention includes a body part connected to a seat belt worn by workers at a construction site; , a support part formed on one side of the body and fastened with a safety ring for preventing falls, a risk detection part inserted into the body and detecting risk information at the construction site, and formed at a position opposite to the support among the body parts. It includes a proximity detection unit that detects the proximity information of the safety ring, and a warning unit that analyzes the danger information and the proximity information and outputs a warning signal.

Description

Smart safety device and smart safety system to prevent falls at construction sites}

The present invention relates to smart safety equipment and smart safety systems for preventing fall accidents at construction sites. More specifically, a technology for detecting whether a worker is wearing a safety ring on a seat belt is disclosed.

[Assignment identification number] E2323001

[Ministry name] Gyeonggi-do

[Research management agency] Gyeonggi Province Economic and Science Promotion Agency

[Research Project Name] 23-Year Gyeonggi-do Small and Medium Business Manager Development Support Project

[Research project title] Development of advanced smart safety equipment to prevent structural collapse accidents

[Contribution rate] 1/1

[Host research institute] Story For You Co., Ltd.

[Research period] 2023.06.01 ~ 2023.11.30

The present invention was derived through the above research project.

Construction Safety accidents involving workers often occur at construction sites. In particular, more than 50% of safety accident deaths at construction sites occur due to falls. To prevent this, workers can reduce fatal accidents in the event of a fall by wearing a seat belt on their body and attaching a safety ring connected to the seat belt to the work structure. However, workers sometimes do not use the safety ring due to carelessness or inconvenience, so it is necessary to manage this.

Among the conventional technologies, Republic of Korea Patent Publication No. 10-2115508 relates to an Internet of Things device for seat belts with a proximity sensor that is attached to an industrial safety belt for the safety of workers at construction sites, and has a body with a safety ring holder. A technology that can detect whether a safety ring is fastened by installing a proximity sensor in the device is disclosed.

However, the conventional technology has limitations in that it cannot issue a warning if a warning request signal is not received from the safety management server when the safety ring is not fastened, and it cannot detect whether the worker has fallen.

The technical problem to be solved by the present invention is to prevent fall accidents at construction sites by immediately outputting a warning signal to force workers to use safety rings when they are not using safety rings in a hazardous area. The purpose is to provide smart safety equipment and smart safety systems for.

In addition, the purpose is to provide smart safety equipment and a smart safety system to prevent fall accidents at construction sites that can quickly send a warning signal to the control server in the event of a worker's fall accident so that follow-up measures can be taken.

In addition, the purpose is to provide smart safety equipment and a smart safety system to prevent fall accidents at construction sites that can accurately determine whether a fall has occurred by determining the relative difference between the altitude information of the body and the altitude information of the safety ring.

In addition, the purpose is to provide smart safety equipment and a smart safety system to prevent falls at construction sites by monitoring the open/closed status of openings at construction sites and warning workers.

Smart safety equipment for preventing fall accidents at construction sites according to an embodiment of the present invention includes a body part connected to a seat belt worn by workers at a construction site, a support part formed on one side of the body part to which a safety ring for preventing falls is fastened, and , a hazard detection unit that is inserted into the body and detects risk information in the construction site, a proximity detection unit that is formed in a position opposite to the support portion of the body and detects proximity information of the safety ring, and the danger. It includes a warning unit that analyzes information and the proximity information and outputs a warning signal.

In addition, it further includes a communication unit that communicates with an external control server, and the warning unit transmits the warning signal to the control server, or transmits an emergency signal to the control server when the worker drives the emergency button formed on the body. You can do it.

In addition, it further includes a temperature and humidity detection unit that detects temperature and humidity information of the body part, and the warning unit can output the warning signal when the temperature and humidity information exceeds a preset safety range.

In addition, it further includes a motion detection unit that detects movement information of the body part, and an altitude detection unit that detects altitude information of the body part, and the warning unit uses the altitude information when the motion information exceeds a preset normal range. Thus, it is possible to determine whether the worker has fallen and transmit the warning signal to the control server.

In addition, it further includes an auxiliary detection unit coupled to the safety ring to detect the altitude information, and the warning unit sends the first altitude information of the altitude detection unit and the auxiliary detection unit when the movement information exceeds a preset normal range. By comparing the second altitude information, it is possible to determine whether the worker has fallen.

Meanwhile, a smart safety system according to another embodiment of the present invention includes smart safety equipment, an opening sensor installed on the cover of at least one opening formed at the construction site to detect whether the opening is open or closed, and the smart safety equipment. Alternatively, it includes a control server that monitors the status of the opening sensor.

Accordingly, if a worker at a construction site is not using the safety ring in a hazardous area, a warning signal is immediately output to force the worker to use the safety ring, thereby preventing safety accidents.

Additionally, in the event of a worker's fall accident, a warning signal can be quickly sent to the control server so that follow-up measures can be taken.

Additionally, it is possible to accurately determine whether a person has fallen by determining the relative difference between the altitude information of the body and the altitude information of the safety ring.

Additionally, it is possible to prevent fall accidents by monitoring the open/closed status of openings at a construction site and warning workers.

1 is a configuration diagram of a smart safety system according to an embodiment of the present invention.
Figure 2 is a configuration diagram of smart safety equipment for preventing fall accidents at construction sites according to another embodiment of the present invention.
Figure 3 is a detailed configuration diagram of the smart safety equipment according to Figure 2.
Figures 4 and 5 are exemplary diagrams to explain the connection relationship between the support part and the safety ring among the smart safety equipment according to Figure 3.
Figure 6 is a configuration diagram of smart safety equipment according to another embodiment of the present invention.
Figure 7 is an example diagram to explain that the smart safety equipment according to Figure 6 communicates with the auxiliary detection unit.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. The terms used are terms selected in consideration of their functions in the embodiment, and the meaning of the terms may vary depending on the intention of the user or operator or precedents. Therefore, the meaning of terms used in the embodiments described below, if specifically defined in the present specification, will follow the definition, and if there is no specific definition, the meaning will be interpreted as generally recognized by those skilled in the art.

1 is a configuration diagram of a smart safety system according to an embodiment of the present invention.

Referring to FIG. 1, a smart safety system for preventing fall accidents at construction sites according to an embodiment of the present invention includes smart safety equipment 100, an opening sensor 300, and a control server 500.

Smart safety equipment 100 is worn by workers at construction sites. Smart safety equipment 100 detects whether the worker is wearing a safety ring. Smart safety equipment 100 detects surrounding location, altitude, movement, etc. Smart safety equipment 100 transmits detection information to the control server 500 through the gateway 510. This sensing information is used to monitor the current status of the worker. The smart safety equipment 100 can also receive a warning signal from the control server 500 to make workers pay attention to safety. Smart safety equipment 100 can be implemented with at least one device.

The opening sensor 300 detects whether at least one opening formed at a construction site is open or closed. Here, the opening refers to a space dug to a preset depth at a construction site. More specifically, the opening sensor 300 is formed on the cover 30 that closes the opening. The opening sensor 300 can detect location, movement, illuminance, etc. The opening sensor 300 transmits detection information to the control server 500 through the gateway 510. This sensing information is used as basic information to determine the open/closed state of the opening. The opening sensor 300 can also be equipped with an additional warning light or siren to output a warning signal. This is to prevent nearby workers from accidentally falling into the opening.

The control server 500 monitors the status of workers at the construction site or the open/closed status of the opening. For example, the control server 500 collects sensing information from the smart safety equipment 100 or the opening sensor 300 in the construction site through at least one gateway 510. In this case, it is possible to determine whether the worker is wearing a safety ring or is located in a dangerous area from the smart safety equipment 100. It is possible to monitor whether the opening is closed or open by the cover 30 from the opening sensor 300. The control server 500 can transmit a warning signal to the smart safety equipment 100 or the opening sensor 300 when the cover 30 of the opening is open.

Figure 2 is a configuration diagram of smart safety equipment for preventing falls at construction sites according to another embodiment of the present invention, Figure 3 is a detailed configuration diagram of the smart safety equipment according to Figure 2, and Figures 4 and 5 are This is an example diagram to explain the connection between the support part and the safety ring among the smart safety equipment according to 3.

2 to 5, the smart safety equipment 100 for preventing fall accidents at construction sites according to another embodiment of the present invention includes a body portion 110, a support portion 120, a hazard detection portion 130, It includes a proximity detection unit 140 and a warning unit 150.

The body portion 110 is connected to the seat belt 10 worn by workers at construction sites. For example, the body portion 110 is formed with a through hole 110-1 in the shape of '=' to be connected to the seat belt 10 in the vertical direction, or '||' to be connected to the anon belt in the horizontal direction. A through hole 110-1 may be formed. The body portion 110 moves with the worker when the seat belt 10 is inserted and connected. The body part 110 is formed with a support part 120, a danger detection part 130, a proximity detection part 140, and a warning part 150, which will be described later.

Additionally, a battery is accommodated inside the body portion 110. Batteries may be replaceable or rechargeable. For example, a battery can be implemented in the form of a primary cell or a secondary cell. The battery supplies power to the danger detection unit 130, proximity detection unit 140, and warning unit 150. The capacity and size of the battery can vary depending on the user's design. Hereinafter, the present invention will be described on the premise that a battery is built into the body portion 110 to supply power to each component.

The support portion 120 is formed on one side of the body portion 110 and a safety ring 20 for preventing falls is fastened thereto. For example, the support portion 120 is formed in a tripod shape and is formed on one side of the body portion 110. The support portion 120 is connected to the body portion 110 by forming three support rods 122 on the support plate 121. In this case, the space between one side of the body portion 110 and the support plate 121 is spaced apart by the plurality of support rods 122. This is to maintain a stable posture while the safety ring 20 is inserted and fastened. For example, when the safety ring 20 is fastened to the first rod 122-1, the remaining second rod 122-2 and third rod 122-3 support the safety ring 20 so that the operator can It ensures that the center of gravity can be stably maintained even when moving.

Here, the safety ring 20 includes a frame 21, a nose 22, and a gate. The frame 21 is formed in an 'L' shape with a curved structure. The width and height of the frame 21 are formed differently. The nose 22 is formed to protrude obliquely at a preset angle on one side of the frame 21. In this case, the nose 22 and the frame 21 are formed as one piece. The width and height of the nose 22 are smaller than those of the frame beam 21. The gate 23 is hinged to rotate on the other side of the frame 23. The gate 23 is supported by an elastic spring and comes into contact with the nose 22, and when an external force is applied, it is laid down toward the frame 21, widening the gap between it and the nose 22.

In FIG. 3, for convenience of explanation, the first rod 122-1 is located in the upper center, the second rod 122-2 is located in the lower left, and the third rod 122-3 is located in the lower right. ), the nose 22 of the safety ring 20 enters between the first rod 122-1 and the second rod 122-2 and the second rod 122-2 and the third rod 122 It is located between -3). The inside of the frame 21 is in contact with the second rod 122-2, and the outside is in contact with or close to the first rod 122-1 and the third rod 122-3. Therefore, when the safety ring 20 rotates in the horizontal direction, its position is fixed due to interference with the first rod 122-1 and the third rod 122-3.

In addition, the width (W) of the frame 21 is formed to be larger than the height (H) of the support rod 122, so that the safety ring 20 is not tilted beyond a preset angle with the body portion 110. The safety ring 20 maintains the above position because its center of gravity is directed downward. The frame 21 is located between the first rod 122-1 and the second rod 122-2, and the width W of the frame 21 is formed to be larger than the height of the support rod 122 to maintain a constant angle. It will not move too much. Therefore, even when the worker moves while the safety ring 20 is fastened to the support portion 120, the safety ring 20 is stably positioned. This can minimize the occurrence of errors when detecting proximity information of the safety ring 20 in the proximity detection unit 140, which will be described later.

The risk detection unit 130 is inserted into the body 110 and detects risk information at the construction site. For example, the risk detection unit 130 can receive risk information installed at a construction site through proximity communication such as Bluetooth. Here, risk information refers to information about risk areas where workers need to wear the safety ring 20 within the construction site. In other words, even when working on the 10th floor of a construction site, risk information is not detected when working indoors, but risk information is detected when working outdoors. When risk information about a risk area set at a construction site is detected, the risk detection unit 130 outputs it to the warning unit 150.

Additionally, the risk detection unit 130 can receive risk information when the cover 30 of the opening is open as shown in FIG. 1. In this case, the danger detection unit 130 can receive the open/closed status of the surrounding openings from the control server 500 and notify the danger status. This is to prevent falling accidents by letting workers know in advance that surrounding openings are open. The hazard detection unit 130 activates the opening as a risk area when a worker works outdoors, and when danger information that the opening is open is detected through the opening sensor 300, it outputs this to the warning unit 150.

The proximity detection unit 140 is formed at a position opposite the support unit 120 of the body unit 110 and detects proximity information of the safety ring 20. For example, the proximity detection unit 140 may detect proximity information using a proximity sensor. The proximity detection unit 140 detects proximity information to detect whether the safety ring 20 is fastened to the support unit 120. The proximity detection unit 140 is formed on one side of the body 110 and can detect proximity information in a non-contact manner. When proximity information is detected, the proximity detection unit 140 outputs it to the warning unit 150.

The warning unit 150 analyzes risk information and proximity information and outputs a warning signal. The warning unit 150 may output a warning signal using a buzzer, or may output a warning signal in the form of a voice guidance such as “Please wear the safety ring 20” using a speaker. The warning unit 150 is also capable of outputting a warning light signal using a lighting lamp formed on the body unit 110. When risk information is detected, the warning unit 150 determines whether proximity information is received.

In this case, when proximity information is received, it is determined that the safety ring 20 is not used in the dangerous area and a warning signal is output. If proximity information is not received, it is determined that the safety ring 20 is being used in a dangerous area, and a warning signal is not output. Accordingly, if a worker at a construction site is not using the safety ring 20 in a dangerous area, a warning signal is immediately output to force the worker to use the safety ring 20, thereby preventing a safety accident.

In addition, the warning unit 150 may output a warning signal when danger information regarding an open state of a surrounding opening is received from the danger detection unit 130. For example, the warning unit 150 may output a warning signal using a buzzer, or may output a warning signal in the form of a voice guidance such as "Be careful because the opening is open" using a speaker. . The warning unit 150 can alert attention by varying the intensity or period of the warning signal when the worker approaches the opening within a preset distance.

Figure 6 is a configuration diagram of smart safety equipment according to another embodiment of the present invention.

Referring to FIG. 6, smart safety equipment 100 according to an embodiment of the present invention may further include a communication unit 160.

The communication unit 160 communicates with an external control server. For example, the communication unit 160 may communicate using long term evolution (LTE), but is not necessarily limited thereto. The communication unit 160 transmits a warning signal to the control server so that the manager can determine and manage the worker's wearing status of the safety ring 20. The communication unit 160 can also receive the manager's voice information from the control server and enable a call through a speaker. The communication unit 160 is also capable of transmitting voice information to the control server when the worker operates the emergency button formed on the body unit 110.

In this case, the warning unit 150 can simultaneously transmit a warning signal to the control server when it occurs. This is for the manager to manage the worker's wearing status of the safety ring (20). The warning unit 150 may cancel the warning signal when the safety ring 20 is separated from the support unit 120 and proximity information is not detected by the proximity detection unit 140. In this case, the warning unit 150 may transmit a release signal to the control server. This is to allow the manager to confirm that the worker's use status of the safety ring 20 has changed. The warning unit 150 may transmit an emergency signal to the control server when the worker operates the emergency button formed on the body unit 110. This is to inform the worker or fellow workers of the detailed situation directly by voice when an emergency situation occurs.

Additionally, when an opening is formed at a construction site, the communication unit 160 can receive a warning signal about whether the opening is open or closed through the control server. When a warning signal is received, the communication unit 160 can output a warning signal through the warning unit 150. The communication unit 160 can also communicate directly with the opening sensor. When an event occurs from a surrounding opening sensor, the communication unit 160 transmits the event to the warning unit 150 and outputs a warning signal. This is to prevent workers from falling due to nearby openings.

Meanwhile, the smart safety equipment 100 according to an embodiment of the present invention may further include a temperature and humidity detection unit 170.

The temperature and humidity sensing unit 170 detects temperature and humidity information of the body portion 110. For example, the temperature and humidity detection unit 170 may include a temperature sensor and a humidity sensor to detect temperature and humidity information. This temperature and humidity information is used as basic data to determine the worker's working environment. For example, when a heat wave warning in the summer or a cold wave warning in the winter is issued, it can be determined whether workers are working outside the preset working hours or not.

In this case, the warning unit 150 outputs a warning signal when the temperature and humidity information exceeds the preset safety range. In this case, the safety range can be set to working hours according to temperature and humidity information. This is to notify workers of dangerous situations and to stop work. The warning unit 150 can also notify the worker by transmitting a warning signal to the control server.

Additionally, the warning unit 150 is also capable of correcting altitude information using temperature and humidity information. This is to prevent altitude information from becoming inaccurate due to changes in atmospheric pressure depending on outdoor temperature and humidity information. In this case, the warning unit 150 extracts location information from risk information and, based on this, generates first altitude information according to barometric pressure information using public data from the Korea Meteorological Administration. The warning unit 150 generates second altitude information by correcting atmospheric pressure information based on temperature and humidity information. This is to accurately determine how far the worker fell when falling.

Meanwhile, the smart safety equipment 100 according to an embodiment of the present invention may further include a motion detection unit 180 and an altitude detection unit 190.

The motion detection unit 180 detects movement information of the body portion 110. For example, the motion detection unit 180 may detect movement using a 3-axis acceleration sensor, but is not necessarily limited to this. When the motion detection unit 180 detects movement of the body unit 110, it outputs it to the warning unit 150. In this case, the movement of the body 110 is treated as the operator's movement. When motion information exceeding a preset normal range is detected, the motion detection unit 180 may output this to the warning unit 150. This is to determine whether the worker fell or fell while working at height.

The altitude detection unit 190 detects altitude information of the body part 110. For example, the altitude detection unit 190 can detect altitude information using an altitude sensor. The altitude detection unit 190 processes the altitude information of the body part 110 by considering it as the worker's altitude information. The altitude detection unit 190 can detect altitude information and output it to the warning unit 150, or detect altitude information when there is a request from the warning unit 150. Altitude information is used to determine whether a worker has fallen. When movement information exceeding a preset normal range is detected in the motion detection unit 180, the altitude detection unit 190 is also capable of automatically detecting the pulse information and outputting the information to the warning unit 150.

In this case, the warning unit 150 determines whether the worker has fallen using altitude information when the movement information exceeds the preset normal range. The warning unit 150 can extract the worker's location information from the risk information. The warning unit 150 determines the altitude difference by comparing the first altitude information set in the risk information and the second altitude information detected by the altitude detection unit 190.

In addition, the warning unit 150 corrects the first altitude information set in the risk information based on temperature and humidity information to generate second altitude information, and compares this with the third altitude information detected by the altitude detection unit 190 to allow the operator The location of the fall can be determined. In other words, by comparing the second altitude information and the third altitude information, it is possible to accurately extract whether the worker fell and the fall height.

In this case, the warning unit 150 transmits a warning signal to the control server when the altitude difference exceeds the preset value. This is to determine that a worker has fallen at a construction site and alert the control server. Therefore, when a worker's fall accident occurs, a warning signal can be quickly sent to the control server to take follow-up measures.

Figure 7 is an example diagram to explain that the smart safety equipment according to Figure 6 communicates with the auxiliary detection unit.

Referring to FIG. 7, smart safety equipment 100 according to an embodiment of the present invention may further include an auxiliary detection unit 200.

The auxiliary detection unit 200 is coupled to the safety ring 20 and detects altitude information. For example, the auxiliary detection unit 200 can detect altitude information using an altitude sensor. This is to detect altitude information of the safety ring 20 itself while being spaced apart from the body portion 110. The auxiliary detection unit 200 can output altitude information of the safety ring 20 to the warning unit 150 or output altitude information to the control server using its own communication module.

In this case, the warning unit 150 sends the first altitude information of the altitude detection unit 190 and the second altitude information of the auxiliary detection unit 200 when the movement information of the body unit 110 exceeds the preset normal range. Compare to determine whether the worker has fallen. This is to accurately determine whether the worker has fallen by comparing the altitude difference between the body portion 110 and the safety ring 20. In this case, it is possible to accurately determine whether a fall has occurred by determining the relative difference between the altitude information of the body 110 and the altitude information of the safety ring 20, separately from the accuracy of the altitude information extracted from the location information of the dangerous area. .

In the above, the present invention has been described focusing on preferred embodiments described with reference to the drawings, but is not limited thereto. Accordingly, the present invention should be construed by the recitation of the claims, which are intended to cover obvious modifications that may be derived from the described embodiments.

100: Sensing device for seat belt
110: body part
110-1: through hole
120: support part
121: support plate
122: support rod
122-1: 1st load
122-2: 2nd load
122-3: 3rd load
130: Danger detection unit
140: Proximity detection unit
150: warning unit
160: Department of Communications
170: Temperature and humidity sensing unit
180: motion detection unit
190: Altitude detection unit
200: Auxiliary detection unit
300: Opening sensor
500: Control server
510: gateway

Claims (5)

A body portion connected to a seat belt worn by workers at a construction site;
A support portion with three support rods formed on a support plate and formed on one side of the body portion to which a safety ring for preventing falls is fastened;
It is inserted into the body and detects risk information, which is information about risk areas requiring wearing of the safety ring within the construction site. If the cover of the opening formed within the construction site is open, the risk information is received from the control server. a receiving danger detection unit;
A proximity detection unit formed at a position of the body opposite the support unit to detect proximity information of the safety ring;
A communication unit that communicates with the external control server; and
Analyze the risk information and the proximity information to output a warning signal, transmit the warning signal to the control server, or transmit an emergency signal to the control server when the worker drives the emergency button formed on the body. , a warning unit that outputs the warning signal when receiving the risk information that the opening is open,
The safety ring is,
It includes a frame formed in an 'L' shape with a curved structure, a nose that obliquely protrudes from the frame at a preset angle, and a gate that is hinged and connected to the other side of the frame to rotate,
The support part,
When the nose enters between the first rod and the second rod and is located between the second rod and the third rod, the inside of the frame is in contact with the second rod, and the outside is in contact with the third rod. , Smart safety equipment for preventing fall accidents at construction sites in which the width of the frame is formed to be larger than the height of the support rod. delete According to paragraph 1,
Further comprising a temperature and humidity detection unit that detects temperature and humidity information of the body part,
The warning part,
Smart safety equipment to prevent fall accidents at construction sites that outputs the warning signal when the temperature and humidity information exceeds the preset safety range. According to paragraph 1,
A motion detection unit that detects motion information of the body part; and
Further comprising an altitude detection unit that detects altitude information of the body part,
The warning part,
Smart safety equipment for preventing fall accidents at construction sites that uses the altitude information to determine whether the worker has fallen when the motion information exceeds a preset normal range and transmits the warning signal to the control server. In the smart safety system including the smart safety equipment of claim 1,
An opening sensor installed on the cover of at least one opening formed at the construction site to detect whether the opening is open or closed; and
A smart safety system further comprising the control server that monitors the status of the smart safety equipment and the opening sensor.