KR102274214B1 - Safety line invasion monitoring device and system - Google Patents

Abstract

According to an embodiment, the plurality of photoelectric slave modules are arranged to be spaced apart from each other by a predetermined interval along a safety line provided on the ground, and self-generate using an incident optical signal; and a photoelectric master module that collects the amount of self-generation from the plurality of photoelectric slave modules and determines whether the safety line is violated by using the amount of self-generation.

Description

Safety line invasion monitoring device and system

The embodiment relates to a safety line intrusion monitoring device and system applicable to the site where industrial facilities and power facilities are installed.

Many industrial facilities or power facilities are operated by installing safety lines on the floor surface that prohibits access other than the workers or operators of the facility to ensure safe movement and efficient work environment.

However, the safety line on the floor set in yellow or orange does not actively and efficiently monitor and control the occupants as a two-dimensional picture.

In the existing field, CCTV is installed around the safety book and the method of monitoring by the manager is being used. However, this method cannot predict at what point the safety island invasion will occur, and there is a problem that the operator must monitor the CCTV screen in real time and continuously.

An object of the present invention is to provide a safety line intrusion detection device and system capable of detecting whether a safety line is violated in real time.

In addition, it is to provide a safety line intrusion detection device and system that can be driven by self-generation in the field.

In addition, it is to provide a safety line intrusion detection device and system that can be linked with a camera and a speaker installed in the field.

According to an embodiment, the plurality of photoelectric slave modules are arranged to be spaced apart from each other by a predetermined interval along a safety line provided on the ground, and self-generate using an incident optical signal; and a photoelectric master module that collects the amount of self-generation from the plurality of photoelectric slave modules and determines whether the safety line is violated by using the amount of self-generation.

The photoelectric slave module may include an optoelectronic device that converts an incident optical signal into an electrical signal; ADC conversion unit for converting the electrical signal into a digital signal; It may include a data transmission unit for transmitting the self-generation signal converted into a digital signal to the photoelectric master module.

The photoelectric master module may include: a data collection unit configured to collect the self-generation signal from a plurality of photoelectric slave modules; and a control unit that compares the duty rate of the collected self-generation signal with a preset reference value to determine whether the safety line is violated.

The photoelectric master module may further include a data communication unit for transmitting a notification signal to the management server when it is determined that the safety line violation has occurred.

According to an embodiment, the plurality of photoelectric slave modules are arranged spaced apart from each other by a predetermined interval along a safety line provided on the ground, and self-generate using an incident optical signal; a photoelectric master module that collects the amount of self-generation from the plurality of photoelectric slave modules and determines whether a safety line is violated by using the amount of self-generation; And it provides a safety line monitoring system including a management server for receiving a notification signal about whether the safety line is violated from the photoelectric master module.

The photoelectric slave module may include an optoelectronic device that converts an incident optical signal into an electrical signal; ADC conversion unit for converting the electrical signal into a digital signal; It may include a data transmission unit for transmitting the self-generation signal converted into a digital signal to the photoelectric master module.

The photoelectric master module may include: a data collection unit configured to collect the self-generation signal from a plurality of photoelectric slave modules; and a control unit that compares the duty rate of the collected self-generation signal with a preset reference value to determine whether the safety line is violated.

The management server may perform a photographing operation by controlling a camera disposed around the safety line when the notification signal is received.

The management server may output a warning signal by controlling a speaker disposed around the safety line when the notification signal is received.

The safety line intrusion detection device and system of the present invention can detect whether the safety line is violated in real time.

In addition, it can be driven by self-generation in the field.

In addition, it can be linked with cameras and speakers installed in the field.

1 is a conceptual diagram of a safety line monitoring system according to an embodiment.
Figure 2 is a conceptual diagram of the installation of the safety line monitoring device according to the embodiment.
3 is a block diagram of a safety line monitoring device according to an embodiment.
4 is a block diagram of a photoelectric slate module according to an embodiment.
5 is a block diagram of a photoelectric master module according to an embodiment.
6 is a diagram for explaining the self-generation amount signal in the embodiment.
7 is a view for explaining the operation of the safety line monitoring device according to the embodiment.

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

However, the technical spirit of the present invention is not limited to some embodiments described, but may be implemented in various different forms, and within the scope of the technical spirit of the present invention, one or more of the components may be selected among the embodiments. It can be combined and substituted for use.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be generally understood by those of ordinary skill in the art to which the present invention pertains, unless specifically defined and described explicitly. It may be interpreted as a meaning, and generally used terms such as terms defined in advance may be interpreted in consideration of the contextual meaning of the related art.

In addition, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In the present specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it is combined with A, B, C It may include one or more of all possible combinations.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used.

These terms are only used to distinguish the component from other components, and are not limited to the essence, order, or order of the component by the term.

And, when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.

In addition, when it is described as being formed or disposed on "above (above) or under (below)" of each component, the top (above) or bottom (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components. In addition, when expressed as "upper (upper) or lower (lower)", the meaning of not only an upper direction but also a lower direction based on one component may be included.

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings, but the same or corresponding components are given the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted.

1 is a conceptual diagram of a safety line monitoring system according to an embodiment, FIG. 2 is an installation conceptual diagram of a safety line monitoring apparatus according to an embodiment, and FIG. 3 is a block diagram of a safety line monitoring apparatus according to an embodiment.

1 to 3 , the safety line monitoring system 1 according to the embodiment may include a photoelectric slave module 100 , a photoelectric master module 200 , and a management server 300 .

In an embodiment, the safety line 10 may be provided on the ground of a site where industrial facilities or power facilities are installed. The safety line 10 may be drawn along the ground in a yellow or orange two-dimensional figure.

In the embodiment, when the safety line 10 is provided indoors, the light source device 20 may be provided above the safety line 10 in order to secure a sufficient amount of light. The light source device 20 may be disposed on a ceiling of an indoor site. The light source device 20 may be disposed to face the safety line 10 to irradiate light.

In an embodiment, the plurality of photoelectric slave modules 100 may be connected to one photoelectric master module 200 . The plurality of photoelectric slave modules 100 and one photoelectric master module 200 may be connected to the system power line 31 to receive power. Each of the photoelectric slave modules 100 may receive a sync signal through the common signal line 32 connected to the photoelectric master module 200 . In addition, each optoelectronic slave module 100 may transmit/receive data through a signal line 33 connected to an adjacent optoelectronic slave module.

In an embodiment, the photoelectric slave module 100 is disposed to be spaced apart from each other by a predetermined interval along the safety line 10 provided on the ground, and may generate self-generation using an incident optical signal. A plurality of photoelectric slave modules 100 may be provided along the safety line 10 , and each photoelectric slave module 100 may be disposed to be spaced apart from each other by a predetermined interval.

4 is a block diagram of a photoelectric slave module according to an embodiment. Referring to FIG. 4 , the photoelectric slave module 100 is configured to include an optoelectronic device 110 , an ADC conversion unit 120 , a data transmission unit 130 , a capacitor 140 , and a reverse voltage prevention circuit 150 . can you

The photoelectric device 110 may convert an incident optical signal into an electrical signal. The photoelectric device 110 may convert an optical signal into an electrical signal using the photoelectric effect. In an embodiment, the photoelectric device 110 may be one of a phototube, a photodiode, a phototransistor, a photoconductive device, a photovoltaic cell, and a solar cell.

The ADC converter 120 may convert an electrical signal into a digital signal. The ADC converter 120 may convert an analog signal, which is an electrical signal, into a digital signal by sampling according to a predetermined sampling rate.

The data transmission unit 130 may transmit the self-generation signal converted into a digital signal to the photoelectric master module 200 . The data transmission unit 130 may transmit the self-generation signal to the photoelectric master module 200 through the signal line 34 and the data signal line 33 connected to the adjacent photoelectric slave module.

The capacitor 140 may stabilize the electrical signal converted by the optoelectronic device.

The reverse voltage prevention circuit 150 may include a diode, and may prevent a current from flowing backward to the system power line 31 .

The photoelectric master module 200 may collect the amount of self-generation from the plurality of photoelectric slave modules 100 and determine whether or not the safety line 10 is violated by using the amount of self-generation.

5 is a block diagram of a photoelectric master module according to an embodiment. Referring to FIG. 5 , the photoelectric master module 200 may include a data collection unit 210 , a control unit 220 , a data communication unit 230 , and a capacitor 240 .

The data collection unit 210 may collect self-generation signals from the plurality of photoelectric slave modules 100 . The data collection unit 210 may collect a self-generated amount signal from the photoelectric slave module 100 through a data signal line.

The controller 220 may determine whether the safety line 10 is violated by comparing a duty rate of the collected self-generation signal with a preset reference value. Referring to FIG. 6 , the converted digital signal may have a duty ratio according to the amount of self-generation. That is, the greater the amount of self-generation, the greater the duty ratio, and the smaller the amount of self-generation, the smaller the duty ratio. In an embodiment, the duty ratio may mean an output amount of the current photoelectric element when the maximum output value of the photoelectric element is 100. Accordingly, when the amount of light received by the photoelectric device 110 is reduced due to the violation of the safety line 10 , the amount of self-generation is reduced and the duty ratio accordingly also decreases. When the duty ratio of the self-generation signal is less than or equal to a preset reference value, the controller 220 may determine that the safety line 10 has been violated. For example, when the duty ratio falls below 50%, the controller 220 may determine that the safety line 10 has been violated.

The controller 220 may determine an area in which the safety line 10 has been violated by using the collected self-generation signal.

Referring to FIG. 7 , the self-generated amount signal may be collected according to a clock signal Clk applied to each module. That is, the photoelectric master module (Master), the first photoelectric slave module (Slave 1), and the second photoelectric slave module (Slave 2) are initialized and operated according to a commonly applied sync signal. Each module may output a signal at the time of the falling edge of the clock signal Clk and may be transmitted through the data signal line. The photoelectric master module may output the reference signal M_Data at the time of the falling edge of the first clock signal. The reference signal M_Data may be a signal for indicating a start point of a data collection period. Next, the first photoelectric slave module outputs the self-generation signal (S1_Data) at the time of the falling edge of the second clock signal, and the second photoelectric slave module outputs the self-generation signal (S2_Data) at the time of the falling edge of the third clock signal. can be printed out. A signal output from each module may be transmitted to the photoelectric master module through a data signal line.

The control unit of the photoelectric master module may determine the duty ratio of each photoelectric slave module by using the pulse sequence of the self-generation signal collected through the data signal line. The control unit of the photoelectric master module may determine when the duty ratio of a specific photoelectric slave module falls below a reference value, and through this, it may determine in which area the safety line is violated.

7 as an example, the duty ratio of the self-generation signal S2_Data collected from the second photoelectric slave module exceeds the reference value, whereas the duty ratio of the self-generation signal S1_Data collected from the first photoelectric slave module is less than or equal to the reference value. that can be checked Accordingly, the control unit may determine that the safety line violation has occurred through the area in which the first photoelectric slave module is installed.

Referring back to FIGS. 1 to 3 , the data communication unit 230 may transmit a notification signal to the management server 300 when it is determined that the safety line 10 has been violated. In this case, the data communication unit 230 may transmit the area in which the safety line 10 is determined to have been violated together.

For example, the data communication unit 230 is a wireless LAN (Wireless LAN: WLAN), Wi-Fi (Wi-Fi), WiBro (Wireless Broadband: Wibro), Wimax (World Interoperability for Microwave Access: Wimax), HSDPA (High Speed) Downlink Packet Access), IEEE 802.16, Long Term Evolution (LTE), using a long-distance communication technology such as Wireless Mobile Broadband Service (WMBS) to perform data communication with the management server 300 can do.

Alternatively, the data communication unit 230 may include Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), Zigbee, and Near Field Communication (NFC). In addition, as a wired communication technology, data communication with the management server 300 may be performed using a short-distance communication technology such as USB communication, Ethernet, serial communication, or an optical/coaxial cable.

The capacitor 240 may stabilize power supplied through the system power line 31 .

The management server 300 may receive a notification signal regarding whether the safety line 10 is violated from the photoelectric master module 200 .

The management server 300 may perform a photographing operation by controlling the camera 400 disposed around the safety line upon receiving the notification signal. The photographing position of the camera 400 may be set to face around the safety line according to a preset. The orientation direction and the shooting area of the camera 400 are shared with the management server 300, and coordinates are synchronized by preset setting. The camera 400 may be a Pan-Tilt-Zoom (PTZ) camera having a zoom function and a tilting function. The camera 400 may take an image around the safety line 10 while adjusting the direction adjustment and zoom function according to the control of the management server 300 .

In this case, the management server 300 may control the orientation direction of the camera 400 to the intrusion area of the safety line 10 received from the photoelectric master module 200 . The management server 300 may control the orientation direction of the camera 400 to intensively photograph an area in which the safety line 10 is violated. In addition, it is possible to control to capture a more detailed image by zooming in the corresponding area.

In addition, the management server 300 may output a warning signal by controlling the speaker 500 disposed around the safety line 10 when receiving the notification signal. The speaker 500 may be disposed around the safety line 10 to output a pre-stored voice signal under the control of the management server 300 .

In an embodiment, the management server 300 may be configured as a DVR server to store a large amount of image information and facilitate search.

The term '~ unit' used in this embodiment means software or a hardware component such as a field-programmable gate array (FPGA) or ASIC, and '~ unit' performs certain roles. However, '~part' is not limited to software or hardware. The '~ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Thus, as an example, '~' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

10: safety line monitoring system
100: photoelectric slave module
200: photoelectric master module
300: management server

Claims (9)

a plurality of photoelectric slave modules spaced apart from each other by a predetermined interval along a safety line provided on the ground of a site where industrial facilities or power facilities are installed, and self-generating using an incident optical signal; and
A photoelectric master module comprising a data collection unit for collecting the self-generation signal from a plurality of photoelectric slave modules and a control unit for determining whether a safety line is violated by comparing the duty rate of the collected self-generation signal with a preset reference value includes,
The photoelectric master module and the plurality of photoelectric slave modules are initialized and operated according to a sync signal applied in common,
Each photoelectric slave module outputs a signal at the time of the falling edge of the clock (Clk) signal and transmits the self-generation signal to the photoelectric master module through a data signal line,
The photoelectric master module outputs the reference signal M_Data at the time of the falling edge of the first clock signal, and the nth photoelectric slave module of the safety line generates the nth self-generation signal at the falling edge of the n+1th clock signal. output (n is a natural number greater than or equal to 2),
The control unit of the photoelectric master module determines the duty ratio of each photoelectric slave module using the pulse sequence of the first to nth self-generation signal, and then determines when the duty ratio of the specific photoelectric slave module falls below the reference value, A safety line monitoring device that determines which area has been invaded. According to claim 1,
The photoelectric slave module is
an optoelectronic device that converts an incident optical signal into an electrical signal;
ADC converter for converting the electrical signal into a digital signal; and
Safety line monitoring device including a data transmission unit for transmitting the self-generation signal converted into a digital signal to the photoelectric master module. delete According to claim 1,
The photoelectric master module further comprises a data communication unit for transmitting a notification signal to the management server when it is determined that the safety line violation has occurred. a plurality of photoelectric slave modules spaced apart from each other by a predetermined interval along a safety line provided on the ground of a site where industrial facilities or power facilities are installed, and self-generating using an incident optical signal;
a photoelectric master module that collects self-generation signals from the plurality of photoelectric slave modules and determines whether a safety line is violated by using the self-generation signals; and
and a management server for receiving a notification signal about whether a safety line has been violated from the photoelectric master module,
The photoelectric master module includes a data collection unit that collects the self-generation signal from a plurality of photoelectric slave modules, and a control unit that compares a duty rate of the collected self-generation signal with a preset reference value to determine whether the safety line is violated and
The photoelectric master module and the plurality of photoelectric slave modules are initialized and operated according to a sync signal applied in common,
Each photoelectric slave module outputs a signal at the time of the falling edge of the clock (Clk) signal and transmits the self-generation signal to the photoelectric master module through a data signal line,
The photoelectric master module outputs the reference signal M_Data at the time of the falling edge of the first clock signal, and the nth photoelectric slave module of the safety line generates the nth self-generation signal at the falling edge of the n+1th clock signal. output (n is a natural number greater than or equal to 2),
The control unit of the photoelectric master module determines the duty ratio of each photoelectric slave module using the pulse sequence of the first to nth self-generation signal, and then determines when the duty ratio of the specific photoelectric slave module falls below the reference value, A safety line monitoring system that determines which area has been invaded. 6. The method of claim 5,
The photoelectric slave module is
an optoelectronic device that converts an incident optical signal into an electrical signal;
ADC converter for converting the electrical signal into a digital signal; and
Safety line monitoring system including a data transmission unit for transmitting the self-generation signal converted into a digital signal to the photoelectric master module. delete 6. The method of claim 5,
The management server is a safety line monitoring system for performing a photographing operation by controlling a camera disposed around the safety line when the notification signal is received. 6. The method of claim 5,
The management server is a safety line monitoring system for outputting a warning signal by controlling a speaker disposed around the safety line when the notification signal is received.

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