Smart safety system and method for operating a smart safety system

Abstract

To provide a smart safety system and an operation method of the smart safety system capable of ensuring safety of a worker in a manufacturing factory.SOLUTION: The smart safety system includes an internal camera for photographing the inside of a workplace, a beam projector for illuminating a worker when the worker is located inside the workplace, a fence lighting device located at an upper end of a fence of the workplace, and an integrated control device for receiving an image signal from the internal camera, processing the image signal to determine whether the worker is located inside the workplace, and controlling the beam projector to illuminate the worker with a beam of a first color and controlling the fence lighting device to emit light of a second color when it is determined that the worker is located inside the workplace.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a smart safety system and a method of operating a smart safety system. [Background technology]

[0002] A significant number of safety accidents in manufacturing plants occur when machinery is operating during inspection of a broken machine. Accidents can occur when safety sensors are not functioning properly, when workers turn off safety sensors for convenience during machinery inspection / repair work, or when other workers are operating machinery. Accidents can also occur when workers have difficulty recognizing whether a safety sensor is operating properly. As such, workers who work in dangerous spaces or operate dangerous machinery in manufacturing plants can suffer accidents for a variety of reasons. This causes workers to work with anxiety about accidents, leading to accumulated mental fatigue, which can lead to other accidents. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2024-86628 Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE INVENTION An object of the present invention is to provide a safety monitoring system and method that can ensure the safety of workers in manufacturing factories. [Means for solving the problem]

[0005] According to one aspect of the invention, a smart safety system includes an internal camera that captures images of the inside of a workplace, a beam projector that illuminates a worker when the worker is located inside the workplace, a fence lighting device that illuminates a fence of the workplace, and an integrated control device that receives a video signal from the internal camera, processes the video signal to determine whether the worker is located inside the workplace, and, when the determination indicates that the worker is located inside the workplace, controls the beam projector to illuminate the worker with a beam of a first color and controls the fence lighting device to emit light of a second color.

[0006] The smart safety system may further include an external camera that captures an image of a predetermined position outside the workplace. The predetermined position may include a nearby area where a control panel for controlling machinery inside the workplace is located. The integrated control device receives a video signal from the external camera, processes the video signal, and determines whether an operator is located at the predetermined position. When the determination indicates that the operator is located inside the workplace, the integrated control device controls the beam projector to illuminate the operator with a beam of a third color and controls the fence lighting device to emit light of a fourth color.

[0007] The smart safety system may further include a lighting device located in the workplace and an alarm device that operates under predetermined conditions to output a warning sound and emit light. The integrated control device may turn on the lighting device when the worker is located in the workplace, and may activate the alarm device if an operator is located at the predetermined position when the worker is located in the workplace.

[0008] The smart safety system may further include a smart hard hat worn by the worker. The smart hard hat may include a communication device for providing wireless communication with the integrated control device, a hard hat illumination device, an alarm speaker, and a control device for controlling the operation of the hard hat illumination device and the alarm speaker. When the worker is located inside the workplace, the communication device may receive a first notification from the integrated control device, and the control device may respond to the first notification by controlling the hard hat illumination device to emit a fifth color and the alarm speaker to output an alarm sound and a voice message. The hard hat illumination device may be located on the exterior and / or interior of the smart hard hat.

[0009] When the integrated control device determines that the operator is located at a predetermined position when the worker is located inside the workplace, it transmits a second notification to the communication device, and the control device can respond to the second notification by controlling the hard hat lighting device to emit a sixth color and controlling the alarm speaker to output an alarm sound and a voice message. The hard hat lighting device can flash in other patterns instead of the fifth color and the sixth color.

[0010] The integrated control device may include an input / output terminal device that provides wired communication connections with the internal camera, the beam projector, and the fence lighting device, and a control device that processes the video signal received from the internal camera to determine whether the worker is located inside the workplace, and when it is determined that the worker is located inside the workplace, generates a control signal to control the beam projector so that the beam projector illuminates the worker with a beam of a first color and generates a control signal to control the fence lighting device so that the fence lighting device emits light with a second color.

[0011] The smart safety system may further include a smart hard hat worn by the worker. The integrated control device may further include a communication device for providing wireless communication with the smart hard hat, and when the control device determines that the worker is located within the workplace as a result of the determination, the control device may generate a first notification notifying the worker and transmit the first notification to the smart hard hat via the communication device.

[0012] The smart safety system may further include a lighting device located in the workplace, the input / output terminal device providing a wired communication connection with the lighting device, and the control device providing a control signal to turn on the lighting device when the worker is located inside the workplace as a result of the determination.

[0013] The smart safety system may further include an external camera that captures an image of a predetermined position outside the workplace, and an alarm device that outputs a warning sound and emits light under predetermined conditions. The predetermined position may include an area adjacent to a control panel for controlling machinery inside the workplace, and the input / output terminal device may provide a wired communication connection between a lighting device and the alarm device. The control device may receive a video signal from the external camera, process the video signal, and determine whether an operator is located at the predetermined position. If the determination indicates that the operator is located inside the workplace, the control device may generate a control signal to activate the alarm device.

[0014] According to another aspect of the present invention, a method for operating a smart safety system may include the steps of: an internal camera capturing an image of the inside of a workplace and generating a first video signal; an integrated control device receiving the first video signal from the internal camera and determining whether a worker is located inside the workplace based on the received first video signal; if the determination shows that a worker is not detected inside the workplace, the integrated control device turning off lighting devices provided in the workplace and controlling a fence lighting device to a first color; and if the determination shows that a worker is detected inside the workplace, the integrated control device turning on the lighting devices and controlling the fence lighting device to a second color, and transmitting a control signal to the control panel of the workplace to block input via button operation on the control panel.

[0015] The operating method of the smart safety system may further include a step of causing a lighting device of the smart hard hat to emit light in a third color when wireless communication between the smart hard hat worn by the worker and the integrated control device is not connected, and a step of causing the integrated control device to control the lighting device of the hard hat to emit light in a fourth color when a worker is detected in the workplace as a result of the determination.

[0016] The operating method of the smart safety system may further include the steps of, when a worker is detected inside the workplace as a result of the determination, using an external camera to capture an image of a predetermined position outside the workplace and generating a second video signal; receiving the second video signal from the external camera and processing the received second video signal by the integrated control device to determine whether an operator is present; and, when the operator is present as a result of the determination whether an operator is present, the integrated control device controls the lighting device of the smart hard hat to a fifth color and controls the alarm speaker of the smart hard hat to output an alarm warning sound.

[0017] The method for operating the smart safety system may further include the step of, if an operator is present as a result of determining whether the operator is present, the integrated control device controlling the beam projector to illuminate the operator in the workplace with a sixth color, controlling the fence lighting device in the workplace to display a seventh color, and controlling the alarm device in the workplace to emit a warning light and emit a warning sound. [Effects of the Invention]

[0018] The smart safety system according to the present disclosure can make a worker working in a hazardous space aware that the current situation is safe. This can relieve the worker's anxiety about the hazardous space. The smart safety system can notify an operator that the worker is working in a hazardous space and prevent the operator from operating machinery in the hazardous space. Furthermore, the smart safety system can notify the worker when machinery is operating. The worker can be aware of the machinery operation and avoid accidents. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view schematically illustrating a part of a manufacturing factory to which a smart safety system according to an embodiment is applied; [Figure 2] 1 is a schematic diagram of a smart hard hat according to one embodiment. FIG. [Figure 3] FIG. 2 is a block diagram illustrating a configuration of an integrated control device according to an embodiment. [Figure 4] 4 is a flowchart illustrating a control operation of an integrated control device according to an embodiment. [Figure 5] 4 is a flowchart illustrating a control operation of an integrated control device according to an embodiment. [Figure 6] FIG. 1 illustrates the status of a workplace and smart hard hats controlled by an integrated controller according to one embodiment. [Figure 7]FIG. 1 illustrates the status of a workplace and smart hard hats controlled by an integrated controller according to one embodiment. [Figure 8] FIG. 1 illustrates the status of a workplace and smart hard hats controlled by an integrated controller according to one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] FIG. 1 is a perspective view schematically illustrating a part of a manufacturing factory to which a smart safety system according to an embodiment is applied.

[0021] FIG. 1 shows a workplace 1000 where one of several processes performed in a manufacturing plant is carried out. The workplace 1000 may be equipped with a press 200, a robot 300, and a control panel 400 for operating the press 200 and the robot 300. The workplace 1000 may be equipped with a laser curtain 600 and a safety fence 500. The safety fence 500 can spatially separate machines in the workplace 1000 where accidents may occur, such as the press 200 and the robot 300. The laser curtain 600 can detect when workers enter or exit the workplace 1000. In FIG. 1, the control panel 400 may be located outside the workplace 1000.

[0022] The smart safety system 1 applied to the workplace 1000 may include an internal camera 110a, an external camera 110b, a lighting device 120, a beam projector 130, an alarm device 140, a smart safety helmet 150, an integrated control device 160, and fence lighting devices 170 170a, 170b, 170c, and 170d.

[0023] The internal camera 110a can capture images of the inside of the workplace 1000 to detect workers located inside the workplace 1000. The external camera 110b can detect other people located outside the workplace 1000. For example, the external camera 110b can capture images of the area near the control panel 400 that controls the press 200 and the robot 300 to determine whether an operator is located in the area near the control panel 400. The internal camera 110a and the external camera 110b can each convert the captured images into a video signal.

[0024] Although the internal camera 110a is shown attached to the top of the pillar 501 of the safety fence 500 in Fig. 1, the invention is not limited thereto. The internal camera 110a can be placed in a location where it can capture images of the inside of the workplace 1000. Although the external camera 110b is shown attached to the top of the pillar 502 of the safety fence 500 in Fig. 1, the invention is not limited thereto. The external camera 110b can be placed in a location where it can capture images of locations outside the workplace 1000 that require monitoring.

[0025] The lighting device 120 can notify the operator that he or she is working. For example, when a worker is located within the workplace 1000, the lighting device 120 can be turned on. The lighting device 120 can be implemented with one of various types of lighting that meets the notification purpose and is not limited to a specific type of lighting. The beam projector 130 can illuminate the operator located within the workplace 1000. Instead of the beam projector 130, other types of lighting devices that can illuminate a specific target can be applied to embodiments of the present invention. The alarm device 140 can include a light source that emits light and a speaker that can output sound. The alarm device 140 can notify the operator that an operator is located near the control panel 400 using light and sound when a worker is located within the workplace 1000.

[0026] The smart hard hat 150 can provide notifications to the worker. The integrated control device 160 can control the entire system. The fence lighting devices 170a to 170d can illuminate the safety fence 500 surrounding the workplace 1000. For example, the fence lighting devices 170a to 170d can be located at the top of the safety fence 500 to display the outline of the workplace 1000 to the outside. The fence lighting devices 170a to 170d can be implemented as any one of various types of lighting devices that can be mechanically coupled to the safety fence 500.

[0027] FIG. 2 is a schematic diagram of a smart hard hat according to one embodiment. As shown in FIG. 2, smart hard hat 150 includes hard hat 151, battery 152, communication device 153, control device 154, hard hat lighting device 155, and alarm speaker 156. Battery 152, communication device 153, and control device 154 are indicated by dotted lines, indicating that these components are provided in storage space 157 formed toward the exterior of hard hat 151. As indicated by dotted lines in FIG. 2, hard hat lighting device 158, which provides the same function as hard hat lighting device 155, may be provided inside hard hat 151, for example, on the inside of the visor. At least one of the two hard hat lighting devices 155, 158 can be attached to hard hat 151. The hard hat lighting device 158 is provided inside hard hat 151, allowing the worker to more easily recognize the current work status.

[0028] The smart hard hat 150 can receive notification information about the status of the workplace 1000 from the integrated control device 160 through the communication device 153. The communication device 153 can be implemented as a wireless communication device. The wireless communication method between the communication device 153 and the integrated control device 160 can be determined taking into consideration the communication distance. The notification information about the status of the workplace 1000 can include a worker entry notification that a worker is located inside the workplace 1000, and an operator location notification that an operator is located in the vicinity of the control panel 400 when the worker is located inside the workplace 1000. The communication device 153 can transmit the received notification to the control device 154.

[0029] The control device 154 can control the functions of the smart hard hat 150. The control device 154 can analyze the notification information transmitted from the communication device 153 and generate a control signal. The control device 154 can turn on or off the lighting device 155 and / or change the color of the hard hat lighting device 155 and / or the hard hat lighting device 158 according to the notification information. In the following description, the description regarding the hard hat lighting device 155 can also be applied to the hard hat lighting device 158. For example, the control device 154 can generate a lighting control signal that controls the color of the hard hat lighting device 155 and provide it to the hard hat lighting device 155. The hard hat lighting device 155 can emit light of a color according to the lighting control signal. Alternatively, the hard hat lighting device 155 can flash in another pattern according to the lighting control signal.

[0030] The control device 154 can generate an alarm sound signal, a voice message signal, etc. according to the notification information and transmit it to the alarm speaker 156. The alarm speaker 156 can output an alarm sound, a voice message, etc. according to the alarm sound signal, the voice message signal, etc. The voice message may be a message informing the operator that they are located within the workplace 1000 or a message informing the operator that they are located in a region adjacent to the control panel 400.

[0031] In addition to the notification information, the control device 154 checks the communication status between the communication device 153 and the integrated control device 160, and if the check results in an abnormality in the communication status, it can generate a lighting control signal, an alarm sound signal, a voice message signal, etc. to indicate this and provide them to the safety helmet lighting device 155 and the alarm speaker 156.

[0032] The battery 152 can provide the power necessary to operate the communication device 153, the control device 154, the hard hat lighting device 155, and the alarm speaker 156. The hard hat lighting device 155 can be realized by a display device capable of displaying multiple colors. For example, the hard hat lighting device 155 can include multiple LED (Light Emitting Diode) elements that display multiple colors. The control device 154 can determine the color that the hard hat lighting device 155 displays according to the situation and adjust the color of the hard hat lighting device 155.

[0033] For example, when the communication device 153 of the smart hard hat 150 and the integrated control device 160 are not connected to each other, the control device 154 can determine and control the color of the hard hat lighting device 155 to yellow. The control device 154 can generate and provide to the hard hat lighting device 155 a lighting control signal instructing the display of yellow.

[0034] When the wireless communication device 153 of the smart hard hat 150 and the integrated control device 160 are connected to each other through communication, the control device 154 can determine and control the color of the hard hat lighting device 155 to be blue. The control device 154 can generate and provide to the hard hat lighting device 155 a lighting control signal instructing blue display.

[0035] The integrated control device 160 detects that a worker has entered the workplace 1000, and the integrated control device 160 can transmit a worker entry notification to the wireless communication device 153. The control device 154 receives the worker entry notification from the communication device 153, and can determine and control the color of the hard hat lighting device 155 to green in response to the worker entry notification. The control device 154 can generate an illumination control signal instructing a green display and provide it to the hard hat lighting device 155.

[0036] When the integrated control device 160 detects that an operator is positioned in front of the control panel 400 and transmits an operator location notification to the wireless communication device 153, the control device 154 receives the operator location notification from the communication device 153 and can determine and control the color of the hard hat lighting device 155 to red in accordance with the operator location notification. The control device 154 can generate an illumination control signal instructing red display and provide it to the hard hat lighting device 155. If necessary, the control device 154 can control the hard hat lighting device 155 to red and at the same time provide an alarm sound signal, alarm message signal, etc. to the alarm speaker 156 so that an alarm warning sound or alarm message is output through the alarm speaker 156.

[0037] FIG. 3 is a block diagram showing the configuration of an integrated control device according to an embodiment. As shown in FIG. 3, the integrated control device 160 may include a display device 161 , an operation button device 162 , a communication device 163 , a control device 164 , an input / output terminal device 165 , and a battery 166 .

[0038] The display device 161 may display a video signal provided from the control device 164. The control device 164 may generate a video signal for displaying an interface screen for controlling the integrated control device 160 and transmit the generated video signal to the display device 161. The display device 161 may also include a touch screen panel 610. A person authorized to operate the smart safety system 1 may input a control command by touching the touch screen panel 610. The touch screen panel 610 may sense an input touch, generate a touch input, and provide the touch input to the control device 164. The control device 164 may sense the touch input, generate input information, and perform a control operation in response to the generated input information.

[0039] The operation button device 162 includes a plurality of buttons 620, and can generate pressure inputs to be applied to each of the plurality of buttons 620 and provide the generated pressure inputs to the control device 164. The control device 164 can sense the pressure inputs, generate input information, and perform a control operation in response to the generated input information.

[0040] The input information may include control commands for the smart safety system 1, information required for the operation of the smart safety system 1, etc. The control commands may include commands related to the control of the smart safety system 1. For example, the control commands for the smart safety system 1 may include a control command for controlling the operation of one of the components of the smart safety system 1.

[0041] The communication device 163 can provide wireless communication between the integrated control device 160 and other components of the smart safety system 1 or external components. The control device 164 generates a control signal by combining information instructing a control operation and an object to perform the control operation, and transmits the control signal to the communication device 163. The communication device 163 can convert the transmitted control signal into a wireless communication signal and transmit it. The object to perform the control operation may be at least one of the components of the smart safety system 1. The communication device 163 can receive signals from components of the smart safety system 1, other external components, etc., and transmit the received signals to the control device 164.

[0042] The input / output terminal device 165 can provide a wired communication connection between the integrated control device 160 and other components of the smart safety system 1. For example, at least some of the components of the smart safety system 1 can be connected to the input / output terminal device 165 via signal wiring, cables, etc. The input / output terminal device 165 can include a plurality of input terminals P1 and P2 and a plurality of output terminals P3 to P8. Each of the plurality of input terminals P1 and P2 can be connected to the internal camera 110a and the external camera 110b, respectively. Each of the plurality of output terminals P3, P4, P5, P6, P7, and P8 can be connected to the internal camera 110a, the external camera 110b, the lighting device 120, the beam projector 130, the alarm device 140, and the fence lighting device 170, respectively.

[0043] The internal camera 110a and the external camera 110b can convert captured images into video signals and output them. The video signals of the internal camera 110a and the external camera 110b can be input to input terminals P1 and P2, respectively, of the input / output terminal device 165. The control device 164 can recognize the video signals input to the input terminals P1 and P2 as the video signal of the internal camera 110a and the video signal of the external camera 110b, respectively. The control device 164 can analyze each video signal and generate control signals for other components. When control commands for the internal camera 110a and the external camera 110b are provided, the control device 164 can generate control signals for controlling the pan, tilt, zoom, etc. of the internal camera 110a and the external camera 110b according to the control commands.

[0044] The control device 164 can generate a plurality of control signals for controlling the internal camera 110a, the external camera 110b, the lighting device 120, the beam projector 130, the alarm device 140, and the fence lighting device 170, respectively, and provide the generated control signals to a plurality of output terminals P3 to P8, respectively. The plurality of output terminals P3 to P8 are connected to input terminals of the internal camera 110a, the external camera 110b, the lighting device 120, the beam projector 130, the alarm device 140, and the fence lighting device 170, respectively. The internal camera 110a, the external camera 110b, the lighting device 120, the beam projector 130, the alarm device 140, and the fence lighting device 170 can each be operated by the control signals input to the input terminals.

[0045] The battery 166 can supply the power necessary for the operation of the integrated control device 160. For example, the battery 166 can supply a battery voltage VB to the display device 161, the communication device 163, and the control device 164.

[0046] The control device 164 processes the video signals acquired from the internal camera 110a and the external camera 110b, and can generate control signals for controlling the on / off and brightness of the lighting device 120 and the fence lighting device 170 according to the video signal processing results. When a worker is located in the workplace 1000, the control device 164 can generate control signals for controlling the projection direction and beam color of the beam projector 130 according to the worker's position according to the video signal processing results. When a worker is located in the workplace 1000 and an operator is located near the control panel 400 according to the video signal processing results, the control device 164 can generate control signals for controlling the alarm device 140 to output a warning sound such as a buzzer and to emit a light.

[0047] The control device 164 can transmit a control command to the control panel 400 according to the result of the video signal processing. For example, the control device 164 can generate a control command for stopping the operation of the press 200 and the robot 300 according to the result of the video signal processing and transmit the generated control command to the control panel 400. The control panel 400 can stop the operation of the press 200 and the robot 300 according to the control command.

[0048] The control device 164 generates a control command for controlling the smart hard hat 150 according to the result of the video signal processing and transmits it to the communication device 163, and the communication device 163 can transmit the control command to the communication device 153 of the smart hard hat 150 through wireless communication. The control device 154 of the smart hard hat 150 can turn on / off the hard hat lighting device 155 or change the color of the lighting based on the received control command, and can sound an alarm or output a voice message through the alarm speaker 156.

[0049] The control operation of the integrated control device according to one embodiment will be described with reference to FIGS. 4 and 5 are flowcharts showing the control operation of the integrated control device according to one embodiment.

[0050] The internal camera 110a can generate a video signal capturing the inside of the workplace 1000 and transmit it to the integrated control device 160 in real time (S1).

[0051] The integrated control device 160 can determine whether a worker is located inside the workplace 1000 based on the received video signal (S2). For example, the control device 164 can receive a video signal from the internal camera 110a through the input / output terminal device 165 and process the received video signal to determine whether a worker is located inside the workplace 1000. The control device 164 can process the video signal to determine whether a worker is located inside the workplace 1000 using a known artificial intelligence object detection technology.

[0052] A known AI object detection technology may be a technology that selectively searches for regions that are likely to contain objects using a deep learning-based region proposal network (RPN). An object detection model is constructed through deep learning using a region proposal network such as Faster R-CNN (Regions with Convolution Neural Network), R_FCN (Region-based Fully Convolutional Network), or Faster R-CNN to which FPN (Feature Pyramid Network) is applied. The control device 164 may include a processor that implements the object detection model constructed in this manner. A known AI object detection technology may be a single-stage algorithm such as YOLO, SSD (Single Shot Multibox Detector), or RetinaNET.

[0053] If it is determined in step S2 that no worker is detected in the workplace 1000, the control device 164 controls the lighting device 120, the beam projector 130, and the alarm device 140 to turn off, controls the fence lighting device 170 to turn green, and controls the hard hat lighting device 155 of the smart hard hat 150 to display blue (S3). If the integrated control device 160 and the smart hard hat 150 are in a wireless communication connection state, i.e., if the distance between the worker wearing the smart hard hat 150 and the integrated control device 160 is within the wireless communication range, the smart hard hat 150 receives the control signal and displays it in blue. If not, the smart hard hat 150 displays yellow, indicating that wireless communication is not connected. The control panel 400 can perform normal operation, generating control commands based on inputs generated by the operator's button operation (S4).

[0054] If it is determined in step S2 that a worker is detected in the workplace 1000, the control device 164 controls the lighting device 120 to turn on, the fence lighting device 170 to turn yellow, and the hard hat lighting device 155 of the smart hard hat 150 to display green, and transmits a control signal (hereinafter, a cut-off control signal) to the control panel 400 to cut off inputs generated by button operations on the control panel 400 (S5). The control panel 400 can ignore inputs generated by button operations based on the cut-off control signal (S6).

[0055] 5, if a worker is detected in the workplace 1000 as a result of the determination in step S2, the control device 164 receives a video signal from the external camera 110b and processes the video signal to determine whether an operator is present in the video captured by the external camera 110b (S7). At this time, the control device 164 can detect the operator located near the control panel 400 using the object detection technology described above.

[0056] If it is determined in step S7 that an operator is located near the control panel 400, the control device 164 may control the safety helmet lighting device 155 of the smart safety helmet 150 to display red and the alarm speaker 156 of the smart safety helmet 150 to output an alarm warning sound (S8). The control device 164 may control the beam projector 130 to illuminate the worker in the workplace 1000 in red, the fence lighting device 170 to display red, and the alarm device 140 to emit a warning light and output a warning sound (S9).

[0057] If the determination result of step S7 is that there is no operator located near the control panel 400, the control device 164 controls the color of the safety helmet lighting device 155 of the smart safety helmet 150 to green, controls the beam projector 130 to illuminate the worker in green, and controls the external alarm device 140 to be in the off state (S10).

[0058] FIG. 6 is a diagram illustrating the status of a workplace and a smart hard hat controlled by an integrated control device according to one embodiment.

[0059] Figure 6 shows the state of the workplace and the smart hard hat when no worker is detected in the workplace. The hard hat lighting device 155 of the smart hard hat 150 can be displayed in yellow or blue. If the smart hard hat 150 and the integrated control device 160 are connected via wireless communication, the hard hat lighting device 155 can be displayed in blue under the control of the integrated control device 160. If they are not connected, the hard hat lighting device 155 emits yellow light, and the alarm speaker 156 of the smart hard hat 150 can emit a warning sound in response to a communication interruption. In addition, the integrated control device 160 controls the fence lighting device 170 to emit green light, and the fence lighting device 170 can emit green light in response to the control.

[0060] FIG. 7 is a diagram illustrating the status of a workplace and a smart hard hat controlled by an integrated control device according to one embodiment.

[0061] 7 shows the status of the workplace and the smart hard hat when a worker is detected in the workplace. When the integrated controller 160 recognizes the worker using the video signal received from the internal camera 110a, the integrated controller 160 transmits a control signal to the hard hat lighting device 155 of the smart hard hat 150 to emit green light, and the hard hat lighting device 155 can emit green light in response to the control signal. The integrated controller 160 transmits a control signal to the beam projector 130 to illuminate the worker with green light, and the beam projector 130 can project a green beam at the worker's location in response to the control signal. The integrated controller 160 controls the fence lighting device 170 to emit yellow light, and the fence lighting device 170 can emit yellow light in response to the control. The integrated controller 160 controls the lighting device 120 to emit red light, and the lighting device 120 can emit red light in response to the control signal.

[0062] FIG. 8 is a diagram illustrating the status of a workplace and a smart hard hat controlled by an integrated control device according to one embodiment. FIG. 8 shows the state of the workplace and the smart hard hat when a worker is detected in the workplace and an operator is detected near the control panel 400.

[0063] When the integrated control device 160 recognizes a worker or an operator using the video signals received from the internal camera 110a and the external camera 110b, the integrated control device 160 transmits a control signal to the hard hat lighting device 155 of the smart hard hat 150 to emit red light, and the hard hat lighting device 155 can emit red light in response to the control signal. The integrated control device 160 transmits a control signal to the beam projector 130 to illuminate the worker in red light, and the beam projector 130 can project a red beam at the worker's position in response to the control signal. The integrated control device 160 controls the fence lighting device 170 to emit red light, and the fence lighting device 170 can emit red light in response to the control. The integrated control device 160 controls the lighting device 120 to emit red light, and the lighting device 120 can emit red light in response to the control. The integrated control device 160 activates the alarm device 140, and the alarm device 140 can output a warning sound and emit red light.

[0064] Although it has been described in Figures 6 to 8 that the color of the safety helmet lighting device 155 of the smart safety helmet 150 changes depending on the workplace condition, the invention is not limited to this, and the safety helmet lighting device 155 may flash in other patterns depending on each workplace condition.

[0065] Embodiments of the present disclosure can control safety sensors used to protect workers in dangerous environments and more effectively notify them of dangerous situations. Conventionally, workers have been unable to check whether safety sensors are operating normally. A machine may operate while a worker is working without being aware of a dangerous situation, causing an accident to the worker. Embodiments of the present disclosure enable workers to check whether safety sensors are operating normally and simultaneously avoid dangerous situations. Deep learning-based safety sensors that perform complex calculations can sometimes fail due to software or hardware instability, and workers with untrained shapes may not be recognized. In contrast, in embodiments, the beam projector's illumination illuminates the worker with different colors depending on the situation, and the smart hard hat's illumination also emits different colors depending on the situation, allowing the worker to easily recognize their own situation. This allows the worker to confirm whether they are being protected safely, avoid dangerous situations, and prevent safety accidents.

[0066] Although one embodiment of the present invention has been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims also fall within the scope of the present invention. [Explanation of symbols]

[0067] 1. Smart Safety System 110a Internal Camera 110b External Camera 120 Lighting Equipment 130 Beam Projector 140 Alarm Device 150 Smart Hard Hat 151 Hard hat 152, 166 Battery 153, 163 Communication equipment 154, 164 Control device 155, 158 Hard hat lighting device 156 Alarm Speaker 157 Storage Space 160 Integrated Control Device 161 Display device 162 Operation button device 165 Input / output terminal device 170 Fence Lighting Device 200 Press 300 robots 400 Control Panel 500 Safety Fence Pillars 501 and 502 600 Laser Curtain 610 Touch Screen Panel 620 Button 1000 Workshop

Claims

1. An internal camera that captures the inside of the workplace, a beam projector for illuminating the worker when the worker is located within the work area; Fence lighting devices to illuminate the work area fence; and an integrated control device that receives a video signal from the internal camera, processes the video signal to determine whether the worker is located inside the workplace, and when the determination indicates that the worker is located inside the workplace, controls the beam projector to illuminate the worker with a beam of a first color and controls the fence lighting device to emit light of a second color.

2. Further, an external camera is included for capturing an image of a predetermined position outside the workplace, 2. The smart safety system of claim 1, wherein the predetermined location comprises a nearby area where a control panel for controlling machinery within the workplace is located.

3. The integrated control device 3. The smart safety system of claim 2, further comprising: receiving a video signal from the external camera; processing the video signal to determine whether an operator is located at the predetermined position; and, when the determination indicates that the operator is located inside the workplace, controlling the beam projector to illuminate the operator with a beam of a third color and controlling the fence lighting device to emit light of a fourth color.

4. a lighting device located in the workplace; and 3. The smart safety system according to claim 2, further comprising an alarm device that operates under a predetermined condition to output a warning sound and emit light.

5. The integrated control device When the worker is located inside the work area, the lighting device is turned on; 5. The smart safety system according to claim 4, wherein when the worker is located inside the workplace, if an operator is located at the predetermined position, the alarm device is activated.

6. and a smart hard hat worn by the worker. The smart safety helmet comprises:

2. The smart safety system of claim 1, further comprising a communication device for providing wireless communication with the integrated control device, a hard hat illumination device, an alarm speaker, and a control device for controlling the operation of the hard hat illumination device and the alarm speaker.

7. The safety helmet lighting device is The smart safety system of claim 6, characterized in that it is located externally and / or internally of the smart hard hat.

8. 7. The smart safety system of claim 6, wherein when the worker is located inside the workplace, the communication device receives a first notification from the integrated control device, and the control device responds to the first notification by controlling the safety helmet lighting device to emit a fifth color and controlling the alarm speaker to output an alarm sound and a voice message.

9. When the worker is located inside the workplace, the integrated control device transmits a second notification to the communication device if it determines that the operator is located at a predetermined position; 9. The smart safety system of claim 8, wherein the control device controls the hard hat lighting device to emit a sixth color and the alarm speaker to output an alarm sound and a voice message in response to the second notification.

10. 10. The smart safety system of claim 9, wherein the hard hat lighting device flashes in other patterns instead of the fifth color and the sixth color, respectively.

11. The integrated control device an input / output terminal device for providing a wired communication connection with the internal camera, the beam projector, and the fence lighting device; and 2. The smart safety system of claim 1, further comprising: a control device that processes the video signal received from the internal camera to determine whether the worker is located inside the workplace, and when the determination indicates that the worker is located inside the workplace, generates a control signal to control the beam projector so that the beam projector illuminates the worker with a beam of a first color and generates a control signal to control the fence lighting device so that the fence lighting device emits light of a second color.

12. and a smart hard hat worn by the worker. The integrated control device a communication device for providing wireless communication with the smart hard hat; 12. The smart safety system of claim 11, wherein the control device generates a first notification indicating that the worker is located inside the workplace as a result of the determination, and transmits the first notification to the smart hard hat through the communication device.

13. further comprising a lighting device located at the work area; The smart safety system of claim 11 , wherein the input / output terminal device provides a wired communication connection with the lighting device.

14. The control device The smart safety system of claim 13, wherein when the worker is located inside the workplace as a result of the determination, a control signal is provided to turn on the lighting device.

15. an external camera that photographs a predetermined position outside the workplace; and The smart safety system according to claim 11, further comprising an alarm device that operates under a predetermined condition to output a warning sound and emit light.

16. the predetermined location includes a nearby area where a control panel for controlling machinery within the workplace is located; the input / output terminal device provides a wired communication connection between the lighting device and the alarm device; The control device 16. The smart safety system of claim 15, further comprising: receiving a video signal from the external camera; processing the video signal to determine whether an operator is located at the predetermined position; and, when the determination indicates that the operator is located within the workplace, generating a control signal to activate the alarm device if the operator is located at the predetermined position.

17. an internal camera capturing an image of the inside of the workplace and generating a first video signal; an integrated control device receiving the first video signal from the internal camera and determining whether a worker is located inside the workplace based on the received first video signal; If a worker is not detected in the workplace as a result of the determination, the integrated control device controls the lighting devices provided in the workplace to be turned off and controls the fence lighting devices to be illuminated in a first color; and when a worker is detected inside the workplace as a result of the determination, the integrated control device controls the lighting device to be on, controls the fence lighting device to be in a second color, and transmits a control signal to the control panel of the workplace to block input by operating a button on the control panel.

18. When wireless communication between the smart hard hat worn by the worker and the integrated control device is not established, a hard hat lighting device of the smart hard hat emits light in a third color; and 18. The method of claim 17, further comprising the step of: when a worker is detected in the workplace as a result of the determination, the integrated control device controls the hard hat lighting device to a fourth color.

19. if a worker is detected inside the workplace as a result of the determination, an external camera captures an image of a predetermined position outside the workplace and generates a second image signal; receiving a second video signal from the external camera by the integrated control device, and processing the received second video signal to determine whether an operator is present; and 20. The method of claim 18, further comprising the step of: if the operator is present as a result of determining whether the operator is present, the integrated control device controls the hard hat lighting device to a fifth color and controls the alarm speaker of the smart hard hat to output an alarm warning sound.

20. 20. The method of claim 18, wherein, if the operator is present as a result of determining whether an operator is present, the integrated control device further comprises the steps of: controlling a beam projector to illuminate the operator in the workplace with a sixth color; controlling the fence lighting device in the workplace to display a seventh color; and controlling an alarm device in the workplace to emit a warning light and emit a warning sound.

Images