WO2008105578A1 - System for monitoring industrial disaster in the manufacturing industry - Google Patents

System for monitoring industrial disaster in the manufacturing industry Download PDF

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Publication number
WO2008105578A1
WO2008105578A1 PCT/KR2007/003972 KR2007003972W WO2008105578A1 WO 2008105578 A1 WO2008105578 A1 WO 2008105578A1 KR 2007003972 W KR2007003972 W KR 2007003972W WO 2008105578 A1 WO2008105578 A1 WO 2008105578A1
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WO
WIPO (PCT)
Prior art keywords
information
unit
emergency
space
sensing
Prior art date
Application number
PCT/KR2007/003972
Other languages
French (fr)
Inventor
Ki Won Lee
Dong Kil Shin
Sang Woo Park
See Young Hwang
Sung Woo Cho
Kyung Hoon Kim
Dong Woo Lee
Nang Keun Yu
Jong Sub Lee
Original Assignee
Ulsan Metropolitan City
Hyundai Heavy Industries Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ulsan Metropolitan City, Hyundai Heavy Industries Co., Ltd. filed Critical Ulsan Metropolitan City
Priority to EP07793576A priority Critical patent/EP2115645A4/en
Publication of WO2008105578A1 publication Critical patent/WO2008105578A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/04—Manufacturing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/004—Alarm propagated along alternative communication path or using alternative communication medium according to a hierarchy of available ways to communicate, e.g. if Wi-Fi not available use GSM
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the present invention relates to a system for monitoring an industrial disaster in the manufacturing industry, and more particularly, to an industrial disaster monitoring system for real-time monitoring various accidents that may occur in a vessel building process and activating an alarm system for emergency situations in order to instantly and effectively confront the industrial disaster.
  • Background Art
  • vessels are large in size. Due to the size of the vessel, it is difficult to manage and monitor each of sections in a vessel. When accidents occur, it is also difficult to effectively and quickly deal with the accidents.
  • a system for monitoring industrial disaster in a manufacturing industry including a portable sensing unit, a stationary sensing unit, and a general control unit.
  • the portable sensing unit is worn by a user in a predetermined space of a vessel while the vessel is building, includes a sensor unit for sensing a vibration signal generated by movement of a user and oxygen concentration information in a peripheral environment, a vibration generating unit for generating vibration if the sensed vibration signal or the sensed oxygen concentration information exceeds a reference range, and an emergency button unit for outputting an emergency signal when the emergency button unit is activated, and transmits the vibration signal, the oxygen concentration information, and the emergency signal with a user identification number through a wireless link.
  • the stationary sensing unit is disposed at a predetermined space in the vessel, includes a stationary sensing unit for sensing at least one of oxygen concentration, temperature, humidity, spark, luminance, and explosive gas in the space, and transmits space sensing information having the sensed information with a space identification number.
  • the general control unit includes a determining unit for generating a first emergency signal having user information and alert information related a corresponding user identification number and threshold range excess if at least one of the vibration signal and the oxygen concentration information transmitted from the portable sensing unit exceeds a threshold range, generating a second emergency signal including user information related to a corresponding user identification number when an emergency signal is received, and generating a third emergency signal having space information and alert information related a corresponding space identification number and threshold range excess if at least one of the space sensing information transmitted from the stationary sensing unit exceeds a threshold range, and an alarm activating unit for activating an alarm system when the emergency signals are generated.
  • the general control unit may further include a safety manager terminal for transmitting the first, second, and third emergency signals through a wireless link, and the safety manager terminal is carried by a safety manager and has a display unit for displaying information included in the first, second, and third emergency signals transmitted from the general control unit.
  • the portable sensing unit may further include a display unit for displaying information included in the first, second, and third emergency signals, transmitted from the general control unit.
  • the general control unit may analyze the vibration signal, the oxygen concentration information, and the space sensing information according to each user or each space and transmit the analysis result to the display unit of the safety manager terminal and the display unit of the portable sensing unit in real time, and the display units of the safety manager terminal and the portable sensing unit display the analysis result in real time.
  • the threshold range of the general control unit may be divided into a warning range and a dangerous range that is more dangerous than the warning range
  • the alert information included in the first emergency signal or the third emergency signal may be divided into warning range alert information and dangerous range alert information
  • the system may further include at least one of current state information boards disposed at the outside of the vessel for receiving the first, second, and third emergency signals from the general control unit through a wireless link and displaying information included in the received emergency signals in texts or graphics in real time.
  • the stationary sensing unit may further include an infrared ray sensor for sensing movement of a moving object in the space and transmitting the sensed movement information to the general control unit with the space sensing information.
  • the system may further include a relaying unit for relaying wireless communication between the portable sensing unit and the general control unit or between the stationary sensing unit and the general control unit, wherein the relaying unit includes a wireless local area network (Wireless LAN) module and a code division multiple access (CDMA) module to communicate selectively using one of a Wireless LAN communication mode and a CDMA communication mode, and switches one of the Wireless LAN module and the CDMA module to the other if one is malfunctioned.
  • Wired LAN wireless local area network
  • CDMA code division multiple access
  • the general control unit may further include a storing unit for storing the user identification number, personal information of each user, and working space information of each user as the user information and the space identification number, a name of each working space, a location of each working space, a map, and user information of users in each working space as the space information, and a history of vibration signals, oxygen concentration information, emergency signals, and space sensing information, transmitted from the portable sensing unit and the stationary sensing unit, by date and time, a prediction unit for analyzing the space sensing information transmitted from the stationary sensing unit and transmitting an emergency alert signal including danger information predicted by the analysis result to portable sensing units of users in a working space predicted to have the fire or explosion and adjacent working spaces, and to the safety manager terminal, the safety manager terminal displays the danger information included in the emergency alert signal through the display unit if the safety manager terminal receives the emergency alert signal from the prediction unit, and the portable sensing unit generates vibration through the vibration generating unit when the portable sensing unit receives the emergency alert signal from the prediction unit and displays the danger
  • a system for monitoring industrial disaster in the manufacturing industry enables workers or safety managers to receive the detail information of emergency situations which may occur in corresponding working spaces or workers in a vessel and to rapidly confront the emergency situations based on the received information. Therefore, the damage of personal property and real property can be reduced.
  • the system for monitoring industrial disaster in the manufacturing industry includes a wireless communication unit employing both of a wireless local area network (Wireless LAN) communication scheme and a code division multiple access (CDMA) communication scheme. That is, it is possible to constantly sustain the communication between a portable sensing unit and a control unit or between a stationary sensing unit and the control unit selectively using one of the Wireless LAN communication scheme and the CDMA communication scheme. Therefore, the damage of personal property and real property can be reduced.
  • Wired LAN wireless local area network
  • CDMA code division multiple access
  • FIG. 1 is a block diagram illustrating a system for monitoring industrial disaster in the manufacturing industry according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating the system of FIG. 1 disposed in a vessel.
  • FIG. 1 is a block diagram illustrating a system for monitoring industrial disaster in the manufacturing industry according to an embodiment of the present invention
  • FIG. 2 is a diagram illustrating the system of FIG. 1 disposed in a vessel.
  • the system 100 for monitoring industrial disaster includes a portable sensing unit 110, a stationary sensing unit 120, and a general control unit 130.
  • the system 100 monitors accidents that may occur while a vessel 10 is building in real time and enables workers or safety managers to rapidly confront the monitored accidents.
  • the portable sensing unit 110 is worn by a user 20 in a predetermined space 11 in the vessel 10.
  • the portable sensing unit 110 includes a sensor unit 111, a vibration generating unit 112, and an emergency button unit 113.
  • the predetermined space 11 means one of working spaces 11 where workers are arranged and perform assigned processes.
  • the workers, users 20, may be a worker performing assigned processes such as welding and assembling.
  • the types of processes are not limited thereto. Any processes performed to build a vessel can be included.
  • the sensor unit 111 senses a vibration signal generated according to the movement of the user 20 and senses information about oxygen concentration in a peripheral environment.
  • the sensor unit 111 may include a vibration sensor (not shown) and an oxygen sensor (not shown).
  • the oxygen concentration information denotes an oxygen concentration value sensed by the oxygen sensor (not shown) according to the oxygen in the peripheral environment.
  • the vibration signal may represent the movement level of the user, which is generated using a current value varied according to the vibration level sensed by the vibration sensor (not shown).
  • the present invention is not limited thereto.
  • the vibration sensor (not shown) may sense vibration generated by the movement of the user 20 at a regular interval. If the vibration sensor does not sense vibration for a predetermined time, the general control unit 130 may determine that the user 20 is unconscious or that an emergency situation occurs.
  • the vibration generating unit 112 generates vibration when the vibration signal sensed by the sensor unit 111 or the oxygen concentration information exceeds a reference range.
  • the vibration generating unit 112 may generate vibration using a method similar to that of a mobile phone.
  • the vibration generating unit 112 determines that the vibration signal or the oxygen concentration information exceeds the reference range if the vibration has not been generated for a predetermined time or if sensed oxygen concentration exceeds the reference range of 10% to 30%.
  • the reference range is not limited thereto.
  • the sensor unit 111 may not sense vibration signal for a predetermined time due to the sleepiness of a worker 20 or the unconscious of the worker 20.
  • the vibration generating unit 112 may generate vibration to wake up the worker 20. Therefore, the vibration generating unit can be used to prevent the worker from having the sleepiness.
  • the emergency button unit 113 is a unit activated by a user to output emergency signals.
  • the portable sensing unit 110 can transmit the vibration signal or the oxygen concentration information sensed by the sensor unit 111 and the emergency signal outputted from the emergency button unit 113 to the general control unit 130 through a wireless link with a user identification number that is assigned to each user for identification purpose.
  • the general control unit 130 discriminates the vibration signals, the oxygen concentration signals, and the emergency signals, which are transmitted from the portable sensing units 110 carried by the users, by each user using the user identification number, and manages and stores the discriminated signals through a storing unit 133.
  • the storing unit 133 of the general control unit 130 may store, manage, and inquiry the user identification numbers and related user information.
  • the user information may include personal information of each user 20 such as a name and an age, a working space 11 of each user 20, the information of other users in the same working space. Therefore, the storing unit 133 can provide the detail information about the user 20 and the related working space to the general control unit 130 when an emergency situation occurs in the working space 11 of the user 20 to rapidly confront the emergency situation.
  • the stationary sensing unit 120 may be disposed at predetermined spaces 11 in the vessel 10, such as working spaces where the users 20 are arranged.
  • the stationary sensing unit 120 includes a stationary sensor 121 for sensing at least one of information about oxygen concentration, temperature, humidity, sparks, luminance, and explosive gas.
  • Such a stationary sensing unit 120 transmits space sensing information including at least one of information about oxygen concentration, temperature, humidity, sparks, luminance, and explosive gas to the general control unit 130 through a wireless link with a space identification number that is assigned to each of spaces for identification purpose.
  • the stationary sensor 121 may be an oxygen sensor (not shown), a temperature sensor (not shown), a humidity sensor (not shown), a spark sensor (not shown), a luminance sensor (not shown), and an explosive gas sensor (not shown).
  • the explosive gas may be a smoke, a THC gas, and ethylene.
  • the stationary sensing unit 120 further includes an infrared ray sensor 122 to sense the movement of moving objects such as a worker in the space 11.
  • the sensed movement information from the infrared ray sensor 122 may be transmitted to the general control unit 130 with the space sensing information through a wireless link.
  • an intruder can be detected in each of working spaces 11 after regular working hours.
  • the infrared ray sensor 122 can be used to rescue workers by detecting moving objects in each of the working spaces 11 when accidents occur in the working spaces 11.
  • the storing unit of the general control unit 130 discriminate the space sensing information by the working spaces 11 using the space identification numbers, and manages and stores the discriminated space sensing information through the storing unit 133.
  • the storing unit 133 of the general control unit 130 further stores, manages, and inquiries the space identification numbers and related space information.
  • the space information may include a name and a location of a working space, a map, and user information of users in a working space. Therefore, it is possible to quickly confront an emergency situation using the information stored in the storing unit 133 when the emergency situation occurs in the working spaces 11 in the vessel.
  • the general control unit 130 may be disposed at a predetermined location separated from the portable sensing unit 110 and the stationary sensing unit 120.
  • the general control unit 130 is disposed at a control room 12 located at the outside of the vessel 10.
  • the general control unit 130 receives the vibration signal, the oxygen concentration information, and the emergency signals from the portable sensing unit 110 through a wireless link, and also receives the space sensing information from the stationary sensing unit 120 through a wireless link.
  • the general control unit 130 includes a determining unit 131, an alarm activating unit 132, a storing unit 133, and a prediction unit 134.
  • the determining unit 131 may generate a first emergency signal when at least one of the vibration signal and the oxygen concentration information exceeds a threshold range.
  • the generated first emergency signal may include user information and alert information related a corresponding user identification number and threshold range excess. That is, the first emergency signal generated from the determining unit 131 may be an emergency signal generated when the vibration signal or the oxygen concentration information transmitted from the portable sensing unit 110 exceeds the threshold range.
  • the determining unit 131 may generate the first emergency signal.
  • the threshold range for the first emergency signal may be identical to the reference range assigned in the portable sensing unit 110.
  • the vibration generating unit 112 may generate vibration to warn each user 20 to recognize an emergency situation before the first emergency signal is generated to enable a safety manager to perform an emergency rescue operation.
  • the user information included in the first emergency signal may include personal information of a user 20 having a portable sensing unit 110 and space information of a working space 11 where the user 20 is arranged.
  • the alert information may be information about the excess of the threshold range, for example, information about a vibration signal that have not sensed for a predetermined time or information about an oxygen concentration value that exceeds a predetermined threshold range of 10% to 30%.
  • the determining unit 131 may generate a second emergency signal having personal information related to a corresponding user identification number. That is, the general control unit 130 can instantly recognizes an emergency situation occurred at a predetermined user 20 or a working space 11 of the predetermined user 20 by receiving an emergency signal from the portable sensing unit 110, which is generated by a user 20 pushing a related button.
  • the determining unit 131 may generate a third emergency signal including space information and alert information related a corresponding space identification number and threshold range excess if each of sensed information such as oxygen concentration, temperature, humidity, sparks, luminance, and explosive gas, from the stationary sensing unit 120, exceeds a threshold range. That is, the third emergency signal generated from the determining unit 131 may be an emergency signal generated when the space sensing information transmitted from the stationary sensing unit 120 exceeds a threshold range.
  • the space information included the third emergency signal includes information about the name of a working space, the location of a working space, a map, and personal information of users arranged in the working space.
  • the alert information is information about the excess of the threshold range, for example, information about space sensing information that exceeds a related threshold range, information about an oxygen concentration value exceeding a related threshold range of 10% to 30%, information about a temperature value exceeding a related threshold range of 5 0 C to 35 0 C, and information about a humidity value exceeding a humidity threshold range of 30% to 70%.
  • the alarm activating unit 132 is disposed at the control room 12 and activates an alarm system when the first, second, and third emergency signals are generated in order to rapidly inform a server manager or a safety manager of the emergency situation.
  • the general control unit 130 may transmit the first, second, and third emergency signals through a wireless link.
  • the system 100 may further includes a safety manager terminal 140 having a display unit 141 for receiving the first, second, and third emergency signals from the general control unit 130 through a wireless link and displaying information in the emergency signals.
  • a safety manager terminal 140 having a display unit 141 for receiving the first, second, and third emergency signals from the general control unit 130 through a wireless link and displaying information in the emergency signals.
  • a safety manager 30 may have the safety manager terminal 140.
  • the safety managers 30 are arranged at several places in the control room 12 or the vessel 10 for managing safeties.
  • the safety manager terminal 140 receives the first, second, and third emergency signals from the general control unit 130 and displays user information, space information, and alert information included in the received emergency signals through the display unit 141 in order to enable the safety manager to instantly recognize and quickly confront an emergency situation. Accordingly, the safety manager 30 can quickly travel to a corresponding working space to perform a related rescue operation based on the displayed information.
  • the safety manager terminal 140 may be a personal digital assistant (PDA) or a mobile phone. However, the present invention is not limited thereto. Any terminal capable of transmitting and receiving data through a wireless link can be used as the safety manager terminal 140.
  • PDA personal digital assistant
  • the portable sensing unit 110 may further includes a display unit 114 for displaying the information included in the first, second, and third emergency signals received from the general control unit 130 through a wireless link.
  • the portable sensing unit 110 enables a user 20 to instantly recognize and quickly confront an emergency situation by displaying user information, space information, and alert information included in the received emergency signals from the general control unit 130 through the display unit 114.
  • the general control unit 130 may analyze a vibration signal, oxygen concentration information, and space sensing information from the portable sensing unit 110 and the stationary sensing unit 120 by each user 20 or each working space 11 and transmits the analyzing result to the safety manager terminal 140 or the portable sensing unit 110.
  • the display unit 141 of the terminal 140 and the display unit 114 of the portable sensing unit 110 display the analysis result to the user 20 or the safety manager 30 in real time. Therefore, the safety manager 30 or the user 20 can check the detail information about the vibration signal, the oxygen concentration information, and the space sensing information in real time although an emergency situation dose not occur.
  • the safety manager 30 receives and confirms space sensing information about each of working spaces 11 from the stationary sensing unit 120 through the general control unit 130 in real time.
  • the safety manager 30 also can perform a safety managing operation by checking the vibration signal or the oxygen concentration information transmitted from the portable sensing unit 110 of each user 30 in real time.
  • the user 20 can also check a vibration signal and oxygen concentration information which are sensed from an own portable sensing unit 110 as well as space sensing information of own working space 11 or other working spaces 11.
  • the general control unit 130 can store, manage, and inquiry the result of analyzing a vibration signal, oxygen concentration information, and space sensing information, which are transmitted from the portable sensing unit 110 and the stationary sensing unit 120.
  • the threshold range a reference to determine an emergency situation in the determining unit 131 of the general control unit 130, is divided into a warning range and a dangerous range denoting a more dangerous state than the warning range.
  • the alert information included in the first emergency signal or the third emergency signal can be divided into warning range alert information and dangerous range alert information.
  • the warning range of oxygen concentration information transmitted from the portable sensing unit 110 is about 18% to 30%, and the dangerous range thereof is about 0% to 17% in case of the first emergency signal.
  • the warning range and the dangerous range of the oxygen concentration information in the space sensing information transmitted from the stationary sensing unit 120 may be identical to that of the first emergency signal.
  • the warning range of the temperature information is in about O 0 C to 5 0 C and in about 35 0 C to 5O 0 C and the dangerous range thereof is lower than about 5 0 C and higher than about 5O 0 C.
  • the determining unit 131 may modify the threshold range including the warning range and the dangerous range.
  • the storing unit 133 of the general control unit 130 stores the user information including the user identification number, the personal information of each user, and space information of a related working space.
  • the storing unit 133 also stores the space information including the space identification number, the names of working spaces, and the location of the working space, a map, and user information of workers in each working space 11.
  • the storing unit 133 may store the history of vibration signals, oxygen concentration information, emergency signals, and space sensing information, which are transmitted from the portable sensing unit 110 and the stationary sensing unit 120, by date and time. Such information stored in the storing unit 133 can be inquired by a server manager.
  • the prediction unit 134 in the general control unit 130 analyzes at least one of the space sensing information such as oxygen concentration, temperature, humidity, spark, luminance, and explosive gas, which are transmitted from the stationary sensing unit 120, and transmits an emergency alarm signal including emergency information which is predicted based on the analyzing result to the portable sensing unit 110 of a user or the safety manager terminal 140 of a safety manager that is located at a working space predicted to have the fire or the explosion or located near to the predicted working space.
  • the space sensing information such as oxygen concentration, temperature, humidity, spark, luminance, and explosive gas
  • the emergency information includes the space information of the predicted working space to have accidents, such as a name of the predicted working space, a location thereof, and a map, the space information of working spaces near to the predicted working space, and the user information of workers in working spaces near to the predicted working space.
  • the safety manager terminal 140 receives the emergency alarm signal from the prediction unit 134 and displays the emergency information included in the emergency alarm signal through the display unit 141 in order to enable the safety manager 30 to predict and recognize the danger of a predetermined working space or a predetermined worker.
  • the portable sensing unit 110 receives the emergency alarm signal from the prediction unit 134, and generates vibration through the vibration generating unit 112 and displays the danger information included in the emergency alert signal through the display unit, thereby enabling a user 20 to quickly detect dangerous working spaces and accidents.
  • the prediction unit 134 detects an explosive gas in a predetermined working space and detects sparks generated from a welding process in the adjacent working space by analyzing the space sensing information transmitted from the stationary sensing unit 120, the prediction unit 134 can predict the possibility of the fire and the explosion by the explosive gas and the sparks. Then, the prediction unit 134 guides workers in the corresponding working spaces to instantly stop the welding process and move to a safer place by transmitting the emergency alarm signal to the related workers. Therefore, accidents and related damage of personal and real property can be significantly reduced by the system 100 according to the present embodiment.
  • the system 100 may further includes a current state informing board 150 disposed in at least one of places outside the vessel 10 for receiving the first, second, and third emergency signals through a wireless link and displaying the information included in the received emergency signals in text or graphic.
  • the current state information board 150 enables the safety managers 30 to visually recognize emergency situations by displaying the user information, the space information, and the alert information included in the emergency signal in texts and graphics.
  • the safety managers 30 can recognize the emergency situation not only through the safety manager terminal 140 but also through the current state information board 150. Therefore, it is effective to inform the safety managers of the emergency situation although the safety managers cannot be informed of the emergency situation through one of the terminal 140 and the current state information board 150.
  • the current state information board 150 may be embodied with a liquid crystal display (LCD) or a plurality of light emitting diodes (LED).
  • LCD liquid crystal display
  • LED light emitting diodes
  • the general control unit 130 may be modified to transmit the first emergency signal or the second emergency signal only to a portable sensing unit 110 of a corresponding user 20 and portable sensing units 110 of other users in the same working space 11 as well as the safety manager terminal 140. It can be embodied using the user information of the corresponding user 20 and the other users in the same working space 11 among user information stored with the user identification number in the general control unit 130.
  • the general control unit 130 may be modified to transmit the third emergency signal only to a user 20 in the corresponding space 11 of the stationary sensing unit 120 or a portable sensing unit of the other user in the other space adjacent to the corresponding space 11. It can be embodied using information about the name of a working space, the location of a working space, a map, and user information of users in each working space among space information stored with the space identification information in the general control unit 130.
  • the system 100 further include a relaying unit 160 for relaying wireless communication between the portable sensing unit 110 and the general control unit 130 and between stationary sensing unit 120 and the general control unit 130.
  • the relaying unit 160 includes a wireless local area network (Wireless LAN) module 161 and a code division multiple access (CDMA) module 162 in order to perform communication selectively using one of the Wireless LAN communication scheme and the CDMA communication scheme.
  • the relaying unit 160 may be disposed at a predetermined area outside the vessel 10.
  • the general control unit 130 can use the other module to communicate with the portable sensing unit 110 or the stationary sensing unit 120.
  • the system 100 can constantly sustain the communication between the general control unit 130 and the portable sensing unit 110 and between the general control unit 130 and the stationary sensing unit 120 using one of the Wireless LAN module and the CDMA module. Therefore, it can reduce the accidents and the damage of the personal and the real property caused by the communication malfunctioning.
  • the relaying unit 160 generally uses the Wireless LAN module 161 to enable the general control unit 130 to communicate with the portable sensing unit 110 or with the stationary sensing unit 120. If the communication between them is disconnected due to the malfunctioning of the Wireless LAN module 161, the relaying unit 160 uses the CDMA module 162 to communicate.
  • the relaying unit 160 may switch the Wireless LAN module 161 to the CDMA module 162.
  • the relaying unit 160 may switch the CDMA module 162 to the Wireless LAN module 161. Also, the Wireless LAN module 161 and the CDMA module 162 of the relaying unit 160 may perform a reset operation if the communication difficulty is not recovered although the relaying unit 160 tries to reconnect several times.
  • the system 100 for monitoring industrial disaster is applied to a vessel 10.
  • the present invention is not limited thereto.
  • the system 100 can be applied to other general manufacturing industry.

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Abstract

Provided is a system for monitoring industrial disaster in an manufacturing industry. The system includes a portable sensing unit, a stationary sensing unit, and a general control unit. The portable sensing unit senses, stores, and transmits a vibration signal, oxygen concentration information, and emergency signals. The stationary sensing unit senses space information and transmits space sensing information with a space identification number. The general control unit receives the information from the portable and stationary sensing units, generates a first, a second, and a third emergency signals based on the received information and activates an alarm system when the emergency signals are generated.

Description

Description
SYSTEM FOR MONITORING INDUSTRIAL DISASTER IN THE
MANUFACTURING INDUSTRY
Technical Field
[1] The present invention relates to a system for monitoring an industrial disaster in the manufacturing industry, and more particularly, to an industrial disaster monitoring system for real-time monitoring various accidents that may occur in a vessel building process and activating an alarm system for emergency situations in order to instantly and effectively confront the industrial disaster. Background Art
[2] In general, vessels are large in size. Due to the size of the vessel, it is difficult to manage and monitor each of sections in a vessel. When accidents occur, it is also difficult to effectively and quickly deal with the accidents.
[3] While a vessel is building, many workers are arranged at various working spaces inside the vessel for performing assigned processes and safety supervisors are also arranged at many places in the vessel for safety purpose. Since the vessel is large in size and many workers are working at the same time in various working spaces in the vessel, the safety of the working spaces and the workers cannot be effectively managed and supervised. Accordingly, a cost of safety management increases.
[4] When accidents such as the fire and explosion occurred, workers reports such accidents to a control room using a personal portable phone or activate an alarm system, conventionally. It is not an effective way to confront such an emergency situation. Also, there is no system provided to report detailed information of emergency situations, such as a location of an accident, a type of an accident, and victims. Therefore, it is impossible to rapidly and efficiently confront such an accident, and the damage of personal property and real property may increase. Disclosure of Invention
Technical Problem
[5] It is, therefore, an object of the present invention to provide a system for monitoring industrial disaster in the manufacturing industry to reduce the damage of personal property and real property by enabling workers or safety managers to receive the detail information of emergency situations which occur in corresponding working spaces or workers in a vessel and to quickly confront the emergency situations based on the received information. Technical Solution
[6] In accordance with one aspect of the present invention, there is provided a system for monitoring industrial disaster in a manufacturing industry including a portable sensing unit, a stationary sensing unit, and a general control unit. The portable sensing unit is worn by a user in a predetermined space of a vessel while the vessel is building, includes a sensor unit for sensing a vibration signal generated by movement of a user and oxygen concentration information in a peripheral environment, a vibration generating unit for generating vibration if the sensed vibration signal or the sensed oxygen concentration information exceeds a reference range, and an emergency button unit for outputting an emergency signal when the emergency button unit is activated, and transmits the vibration signal, the oxygen concentration information, and the emergency signal with a user identification number through a wireless link. The stationary sensing unit is disposed at a predetermined space in the vessel, includes a stationary sensing unit for sensing at least one of oxygen concentration, temperature, humidity, spark, luminance, and explosive gas in the space, and transmits space sensing information having the sensed information with a space identification number. The general control unit includes a determining unit for generating a first emergency signal having user information and alert information related a corresponding user identification number and threshold range excess if at least one of the vibration signal and the oxygen concentration information transmitted from the portable sensing unit exceeds a threshold range, generating a second emergency signal including user information related to a corresponding user identification number when an emergency signal is received, and generating a third emergency signal having space information and alert information related a corresponding space identification number and threshold range excess if at least one of the space sensing information transmitted from the stationary sensing unit exceeds a threshold range, and an alarm activating unit for activating an alarm system when the emergency signals are generated.
[7] The general control unit may further include a safety manager terminal for transmitting the first, second, and third emergency signals through a wireless link, and the safety manager terminal is carried by a safety manager and has a display unit for displaying information included in the first, second, and third emergency signals transmitted from the general control unit.
[8] The portable sensing unit may further include a display unit for displaying information included in the first, second, and third emergency signals, transmitted from the general control unit.
[9] The general control unit may analyze the vibration signal, the oxygen concentration information, and the space sensing information according to each user or each space and transmit the analysis result to the display unit of the safety manager terminal and the display unit of the portable sensing unit in real time, and the display units of the safety manager terminal and the portable sensing unit display the analysis result in real time.
[10] The threshold range of the general control unit may be divided into a warning range and a dangerous range that is more dangerous than the warning range, the alert information included in the first emergency signal or the third emergency signal may be divided into warning range alert information and dangerous range alert information, and the system may further include at least one of current state information boards disposed at the outside of the vessel for receiving the first, second, and third emergency signals from the general control unit through a wireless link and displaying information included in the received emergency signals in texts or graphics in real time.
[11] The stationary sensing unit may further include an infrared ray sensor for sensing movement of a moving object in the space and transmitting the sensed movement information to the general control unit with the space sensing information.
[12] The system may further include a relaying unit for relaying wireless communication between the portable sensing unit and the general control unit or between the stationary sensing unit and the general control unit, wherein the relaying unit includes a wireless local area network (Wireless LAN) module and a code division multiple access (CDMA) module to communicate selectively using one of a Wireless LAN communication mode and a CDMA communication mode, and switches one of the Wireless LAN module and the CDMA module to the other if one is malfunctioned.
[13] The general control unit may further include a storing unit for storing the user identification number, personal information of each user, and working space information of each user as the user information and the space identification number, a name of each working space, a location of each working space, a map, and user information of users in each working space as the space information, and a history of vibration signals, oxygen concentration information, emergency signals, and space sensing information, transmitted from the portable sensing unit and the stationary sensing unit, by date and time, a prediction unit for analyzing the space sensing information transmitted from the stationary sensing unit and transmitting an emergency alert signal including danger information predicted by the analysis result to portable sensing units of users in a working space predicted to have the fire or explosion and adjacent working spaces, and to the safety manager terminal, the safety manager terminal displays the danger information included in the emergency alert signal through the display unit if the safety manager terminal receives the emergency alert signal from the prediction unit, and the portable sensing unit generates vibration through the vibration generating unit when the portable sensing unit receives the emergency alert signal from the prediction unit and displays the danger information included in the emergency alert signal through the display unit. Advantageous Effects
[14] A system for monitoring industrial disaster in the manufacturing industry according to an embodiment of the present invention enables workers or safety managers to receive the detail information of emergency situations which may occur in corresponding working spaces or workers in a vessel and to rapidly confront the emergency situations based on the received information. Therefore, the damage of personal property and real property can be reduced.
[15] Also, the system for monitoring industrial disaster in the manufacturing industry according to an embodiment of the present invention includes a wireless communication unit employing both of a wireless local area network (Wireless LAN) communication scheme and a code division multiple access (CDMA) communication scheme. That is, it is possible to constantly sustain the communication between a portable sensing unit and a control unit or between a stationary sensing unit and the control unit selectively using one of the Wireless LAN communication scheme and the CDMA communication scheme. Therefore, the damage of personal property and real property can be reduced. Brief Description of the Drawings
[16] The above and other objects and features of the present invention will become apparent from the following description of the preferred embodiments given in conjunction with the accompanying drawings, in which:
[17] FIG. 1 is a block diagram illustrating a system for monitoring industrial disaster in the manufacturing industry according to an embodiment of the present invention; and
[18] FIG. 2 is a diagram illustrating the system of FIG. 1 disposed in a vessel.
Best Mode for Carrying Out the Invention
[19] Other objects and aspects of the invention will become apparent from the following description of the embodiments with reference to the accompanying drawings, which is set forth hereinafter.
[20] FIG. 1 is a block diagram illustrating a system for monitoring industrial disaster in the manufacturing industry according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating the system of FIG. 1 disposed in a vessel.
[21] Referring to FIG. 1 and FIG. 2, the system 100 for monitoring industrial disaster according to an embodiment of the present invention includes a portable sensing unit 110, a stationary sensing unit 120, and a general control unit 130. The system 100 according to the present embodiment monitors accidents that may occur while a vessel 10 is building in real time and enables workers or safety managers to rapidly confront the monitored accidents.
[22] At first, the portable sensing unit 110 is worn by a user 20 in a predetermined space 11 in the vessel 10. The portable sensing unit 110 includes a sensor unit 111, a vibration generating unit 112, and an emergency button unit 113. The predetermined space 11 means one of working spaces 11 where workers are arranged and perform assigned processes. The workers, users 20, may be a worker performing assigned processes such as welding and assembling. However, the types of processes are not limited thereto. Any processes performed to build a vessel can be included.
[23] The sensor unit 111 senses a vibration signal generated according to the movement of the user 20 and senses information about oxygen concentration in a peripheral environment. The sensor unit 111 may include a vibration sensor (not shown) and an oxygen sensor (not shown).
[24] The oxygen concentration information denotes an oxygen concentration value sensed by the oxygen sensor (not shown) according to the oxygen in the peripheral environment. The vibration signal may represent the movement level of the user, which is generated using a current value varied according to the vibration level sensed by the vibration sensor (not shown). However, the present invention is not limited thereto.
[25] The vibration sensor (not shown) may sense vibration generated by the movement of the user 20 at a regular interval. If the vibration sensor does not sense vibration for a predetermined time, the general control unit 130 may determine that the user 20 is unconscious or that an emergency situation occurs.
[26] The vibration generating unit 112 generates vibration when the vibration signal sensed by the sensor unit 111 or the oxygen concentration information exceeds a reference range. The vibration generating unit 112 may generate vibration using a method similar to that of a mobile phone.
[27] The vibration generating unit 112 determines that the vibration signal or the oxygen concentration information exceeds the reference range if the vibration has not been generated for a predetermined time or if sensed oxygen concentration exceeds the reference range of 10% to 30%. However, the reference range is not limited thereto.
[28] The sensor unit 111 may not sense vibration signal for a predetermined time due to the sleepiness of a worker 20 or the unconscious of the worker 20. In case of the sleepiness of the worker 20, the vibration generating unit 112 may generate vibration to wake up the worker 20. Therefore, the vibration generating unit can be used to prevent the worker from having the sleepiness.
[29] The emergency button unit 113 is a unit activated by a user to output emergency signals.
[30] For example, when disaster such as the fire or explosion occurs in a working space
11, or when the user 20 has personal emergency situation, a user 20 who discovers the dangerous situations activates the emergency button unit 113 to request the general control unit 130 to quickly perform an emergency rescue process in real time. [31] As described above, the portable sensing unit 110 can transmit the vibration signal or the oxygen concentration information sensed by the sensor unit 111 and the emergency signal outputted from the emergency button unit 113 to the general control unit 130 through a wireless link with a user identification number that is assigned to each user for identification purpose.
[32] The general control unit 130 discriminates the vibration signals, the oxygen concentration signals, and the emergency signals, which are transmitted from the portable sensing units 110 carried by the users, by each user using the user identification number, and manages and stores the discriminated signals through a storing unit 133.
[33] The storing unit 133 of the general control unit 130 may store, manage, and inquiry the user identification numbers and related user information. The user information may include personal information of each user 20 such as a name and an age, a working space 11 of each user 20, the information of other users in the same working space. Therefore, the storing unit 133 can provide the detail information about the user 20 and the related working space to the general control unit 130 when an emergency situation occurs in the working space 11 of the user 20 to rapidly confront the emergency situation.
[34] The stationary sensing unit 120 may be disposed at predetermined spaces 11 in the vessel 10, such as working spaces where the users 20 are arranged. The stationary sensing unit 120 includes a stationary sensor 121 for sensing at least one of information about oxygen concentration, temperature, humidity, sparks, luminance, and explosive gas. Such a stationary sensing unit 120 transmits space sensing information including at least one of information about oxygen concentration, temperature, humidity, sparks, luminance, and explosive gas to the general control unit 130 through a wireless link with a space identification number that is assigned to each of spaces for identification purpose.
[35] The stationary sensor 121 may be an oxygen sensor (not shown), a temperature sensor (not shown), a humidity sensor (not shown), a spark sensor (not shown), a luminance sensor (not shown), and an explosive gas sensor (not shown). The explosive gas may be a smoke, a THC gas, and ethylene.
[36] The stationary sensing unit 120 further includes an infrared ray sensor 122 to sense the movement of moving objects such as a worker in the space 11. The sensed movement information from the infrared ray sensor 122 may be transmitted to the general control unit 130 with the space sensing information through a wireless link. Using the sensed movement information sensed from the infrared ray sensor 122, an intruder can be detected in each of working spaces 11 after regular working hours.
[37] Also, the infrared ray sensor 122 can be used to rescue workers by detecting moving objects in each of the working spaces 11 when accidents occur in the working spaces 11.
[38] The storing unit of the general control unit 130 discriminate the space sensing information by the working spaces 11 using the space identification numbers, and manages and stores the discriminated space sensing information through the storing unit 133.
[39] The storing unit 133 of the general control unit 130 further stores, manages, and inquiries the space identification numbers and related space information. Herein, the space information may include a name and a location of a working space, a map, and user information of users in a working space. Therefore, it is possible to quickly confront an emergency situation using the information stored in the storing unit 133 when the emergency situation occurs in the working spaces 11 in the vessel.
[40] The general control unit 130 may be disposed at a predetermined location separated from the portable sensing unit 110 and the stationary sensing unit 120. For example, the general control unit 130 is disposed at a control room 12 located at the outside of the vessel 10. The general control unit 130 receives the vibration signal, the oxygen concentration information, and the emergency signals from the portable sensing unit 110 through a wireless link, and also receives the space sensing information from the stationary sensing unit 120 through a wireless link. The general control unit 130 includes a determining unit 131, an alarm activating unit 132, a storing unit 133, and a prediction unit 134.
[41] The determining unit 131 may generate a first emergency signal when at least one of the vibration signal and the oxygen concentration information exceeds a threshold range. The generated first emergency signal may include user information and alert information related a corresponding user identification number and threshold range excess. That is, the first emergency signal generated from the determining unit 131 may be an emergency signal generated when the vibration signal or the oxygen concentration information transmitted from the portable sensing unit 110 exceeds the threshold range.
[42] It is determined that the vibration signal or the oxygen concentration information exceeds the reference range if the vibration has not been generated for a predetermined time or if sensed oxygen concentration exceeds a threshold range of 10% to 30%. In this case, the determining unit 131 may generate the first emergency signal.
[43] The threshold range for the first emergency signal may be identical to the reference range assigned in the portable sensing unit 110. In the present embodiment, the vibration generating unit 112 may generate vibration to warn each user 20 to recognize an emergency situation before the first emergency signal is generated to enable a safety manager to perform an emergency rescue operation.
[44] Meanwhile, the user information included in the first emergency signal may include personal information of a user 20 having a portable sensing unit 110 and space information of a working space 11 where the user 20 is arranged. The alert information may be information about the excess of the threshold range, for example, information about a vibration signal that have not sensed for a predetermined time or information about an oxygen concentration value that exceeds a predetermined threshold range of 10% to 30%.
[45] When the determining unit 131 receives an emergency signal from the portable sensing unit 110, the determining unit 131 may generate a second emergency signal having personal information related to a corresponding user identification number. That is, the general control unit 130 can instantly recognizes an emergency situation occurred at a predetermined user 20 or a working space 11 of the predetermined user 20 by receiving an emergency signal from the portable sensing unit 110, which is generated by a user 20 pushing a related button.
[46] The determining unit 131 may generate a third emergency signal including space information and alert information related a corresponding space identification number and threshold range excess if each of sensed information such as oxygen concentration, temperature, humidity, sparks, luminance, and explosive gas, from the stationary sensing unit 120, exceeds a threshold range. That is, the third emergency signal generated from the determining unit 131 may be an emergency signal generated when the space sensing information transmitted from the stationary sensing unit 120 exceeds a threshold range.
[47] The space information included the third emergency signal includes information about the name of a working space, the location of a working space, a map, and personal information of users arranged in the working space. The alert information is information about the excess of the threshold range, for example, information about space sensing information that exceeds a related threshold range, information about an oxygen concentration value exceeding a related threshold range of 10% to 30%, information about a temperature value exceeding a related threshold range of 50C to 350C, and information about a humidity value exceeding a humidity threshold range of 30% to 70%.
[48] The alarm activating unit 132 is disposed at the control room 12 and activates an alarm system when the first, second, and third emergency signals are generated in order to rapidly inform a server manager or a safety manager of the emergency situation.
[49] The general control unit 130 may transmit the first, second, and third emergency signals through a wireless link.
[50] According to the present embodiment, the system 100 may further includes a safety manager terminal 140 having a display unit 141 for receiving the first, second, and third emergency signals from the general control unit 130 through a wireless link and displaying information in the emergency signals.
[51] A safety manager 30 may have the safety manager terminal 140. The safety managers 30 are arranged at several places in the control room 12 or the vessel 10 for managing safeties.
[52] That is, the safety manager terminal 140 receives the first, second, and third emergency signals from the general control unit 130 and displays user information, space information, and alert information included in the received emergency signals through the display unit 141 in order to enable the safety manager to instantly recognize and quickly confront an emergency situation. Accordingly, the safety manager 30 can quickly travel to a corresponding working space to perform a related rescue operation based on the displayed information.
[53] The safety manager terminal 140 may be a personal digital assistant (PDA) or a mobile phone. However, the present invention is not limited thereto. Any terminal capable of transmitting and receiving data through a wireless link can be used as the safety manager terminal 140.
[54] The portable sensing unit 110 may further includes a display unit 114 for displaying the information included in the first, second, and third emergency signals received from the general control unit 130 through a wireless link.
[55] That is, the portable sensing unit 110 enables a user 20 to instantly recognize and quickly confront an emergency situation by displaying user information, space information, and alert information included in the received emergency signals from the general control unit 130 through the display unit 114.
[56] The general control unit 130 may analyze a vibration signal, oxygen concentration information, and space sensing information from the portable sensing unit 110 and the stationary sensing unit 120 by each user 20 or each working space 11 and transmits the analyzing result to the safety manager terminal 140 or the portable sensing unit 110.
[57] The display unit 141 of the terminal 140 and the display unit 114 of the portable sensing unit 110 display the analysis result to the user 20 or the safety manager 30 in real time. Therefore, the safety manager 30 or the user 20 can check the detail information about the vibration signal, the oxygen concentration information, and the space sensing information in real time although an emergency situation dose not occur.
[58] For example, the safety manager 30 receives and confirms space sensing information about each of working spaces 11 from the stationary sensing unit 120 through the general control unit 130 in real time. The safety manager 30 also can perform a safety managing operation by checking the vibration signal or the oxygen concentration information transmitted from the portable sensing unit 110 of each user 30 in real time. The user 20 can also check a vibration signal and oxygen concentration information which are sensed from an own portable sensing unit 110 as well as space sensing information of own working space 11 or other working spaces 11.
[59] The general control unit 130 can store, manage, and inquiry the result of analyzing a vibration signal, oxygen concentration information, and space sensing information, which are transmitted from the portable sensing unit 110 and the stationary sensing unit 120.
[60] The threshold range, a reference to determine an emergency situation in the determining unit 131 of the general control unit 130, is divided into a warning range and a dangerous range denoting a more dangerous state than the warning range.
[61] Accordingly, the alert information included in the first emergency signal or the third emergency signal can be divided into warning range alert information and dangerous range alert information.
[62] For example, the warning range of oxygen concentration information transmitted from the portable sensing unit 110 is about 18% to 30%, and the dangerous range thereof is about 0% to 17% in case of the first emergency signal. In case of the third emergency signal, the warning range and the dangerous range of the oxygen concentration information in the space sensing information transmitted from the stationary sensing unit 120 may be identical to that of the first emergency signal. The warning range of the temperature information is in about O0C to 50C and in about 350C to 5O0C and the dangerous range thereof is lower than about 50C and higher than about 5O0C.
[63] In case of the fire, an indoor temperature increases, the humidity and oxygen concentration decreases, a toxic gas including an explosive gas increases, and luminance decreases. That is, the firs can be predicted through such information. When an explosive gas is detected, a disaster such as the fire and the explosion can be predicted.
[64] The determining unit 131 may modify the threshold range including the warning range and the dangerous range.
[65] As described above, the storing unit 133 of the general control unit 130 stores the user information including the user identification number, the personal information of each user, and space information of a related working space. The storing unit 133 also stores the space information including the space identification number, the names of working spaces, and the location of the working space, a map, and user information of workers in each working space 11.
[66] The storing unit 133 may store the history of vibration signals, oxygen concentration information, emergency signals, and space sensing information, which are transmitted from the portable sensing unit 110 and the stationary sensing unit 120, by date and time. Such information stored in the storing unit 133 can be inquired by a server manager.
[67] The prediction unit 134 in the general control unit 130 analyzes at least one of the space sensing information such as oxygen concentration, temperature, humidity, spark, luminance, and explosive gas, which are transmitted from the stationary sensing unit 120, and transmits an emergency alarm signal including emergency information which is predicted based on the analyzing result to the portable sensing unit 110 of a user or the safety manager terminal 140 of a safety manager that is located at a working space predicted to have the fire or the explosion or located near to the predicted working space.
[68] The emergency information includes the space information of the predicted working space to have accidents, such as a name of the predicted working space, a location thereof, and a map, the space information of working spaces near to the predicted working space, and the user information of workers in working spaces near to the predicted working space.
[69] The safety manager terminal 140 receives the emergency alarm signal from the prediction unit 134 and displays the emergency information included in the emergency alarm signal through the display unit 141 in order to enable the safety manager 30 to predict and recognize the danger of a predetermined working space or a predetermined worker.
[70] The portable sensing unit 110 receives the emergency alarm signal from the prediction unit 134, and generates vibration through the vibration generating unit 112 and displays the danger information included in the emergency alert signal through the display unit, thereby enabling a user 20 to quickly detect dangerous working spaces and accidents.
[71] For example, when the prediction unit 134 detects an explosive gas in a predetermined working space and detects sparks generated from a welding process in the adjacent working space by analyzing the space sensing information transmitted from the stationary sensing unit 120, the prediction unit 134 can predict the possibility of the fire and the explosion by the explosive gas and the sparks. Then, the prediction unit 134 guides workers in the corresponding working spaces to instantly stop the welding process and move to a safer place by transmitting the emergency alarm signal to the related workers. Therefore, accidents and related damage of personal and real property can be significantly reduced by the system 100 according to the present embodiment.
[72] The system 100 according to the present embodiment may further includes a current state informing board 150 disposed in at least one of places outside the vessel 10 for receiving the first, second, and third emergency signals through a wireless link and displaying the information included in the received emergency signals in text or graphic.
[73] In general, it is difficult for workers or safety managers to instantly and accurately recognize a current state of disaster through sound because it is too noisy in the vessel 10. The current state information board 150 enables the safety managers 30 to visually recognize emergency situations by displaying the user information, the space information, and the alert information included in the emergency signal in texts and graphics.
[74] Accordingly, the safety managers 30 can recognize the emergency situation not only through the safety manager terminal 140 but also through the current state information board 150. Therefore, it is effective to inform the safety managers of the emergency situation although the safety managers cannot be informed of the emergency situation through one of the terminal 140 and the current state information board 150.
[75] The current state information board 150 may be embodied with a liquid crystal display (LCD) or a plurality of light emitting diodes (LED).
[76] In case of the first emergency signal or the second emergency signal transmitted from the portable sensing unit 110, the general control unit 130 may be modified to transmit the first emergency signal or the second emergency signal only to a portable sensing unit 110 of a corresponding user 20 and portable sensing units 110 of other users in the same working space 11 as well as the safety manager terminal 140. It can be embodied using the user information of the corresponding user 20 and the other users in the same working space 11 among user information stored with the user identification number in the general control unit 130.
[77] In case of the third emergency signal from the stationary sensing unit 120, the general control unit 130 may be modified to transmit the third emergency signal only to a user 20 in the corresponding space 11 of the stationary sensing unit 120 or a portable sensing unit of the other user in the other space adjacent to the corresponding space 11. It can be embodied using information about the name of a working space, the location of a working space, a map, and user information of users in each working space among space information stored with the space identification information in the general control unit 130.
[78] Meanwhile, the system 100 according to the present embodiment further include a relaying unit 160 for relaying wireless communication between the portable sensing unit 110 and the general control unit 130 and between stationary sensing unit 120 and the general control unit 130. The relaying unit 160 includes a wireless local area network (Wireless LAN) module 161 and a code division multiple access (CDMA) module 162 in order to perform communication selectively using one of the Wireless LAN communication scheme and the CDMA communication scheme. The relaying unit 160 may be disposed at a predetermined area outside the vessel 10.
[79] If the general control unit 130 cannot communicate with the portable sensing unit
110 or the stationary sensing unit 130 using one of the Wireless LAN module and the CDMA module, the general control unit 130 can use the other module to communicate with the portable sensing unit 110 or the stationary sensing unit 120.
[80] That is, if a communication system is malfunctioned for informing an emergency situation in a large structure like a vessel 10 having a plurality of working spaces 11 and a plurality of users 20, a small accident could be transformed to a huge disaster that damages not only the personal property but also the real property. The system 100 according to the present invention can constantly sustain the communication between the general control unit 130 and the portable sensing unit 110 and between the general control unit 130 and the stationary sensing unit 120 using one of the Wireless LAN module and the CDMA module. Therefore, it can reduce the accidents and the damage of the personal and the real property caused by the communication malfunctioning.
[81] For example, the relaying unit 160 generally uses the Wireless LAN module 161 to enable the general control unit 130 to communicate with the portable sensing unit 110 or with the stationary sensing unit 120. If the communication between them is disconnected due to the malfunctioning of the Wireless LAN module 161, the relaying unit 160 uses the CDMA module 162 to communicate.
[82] If the relaying unit 160 dose not receive any acknowledgement from the portable sensing unit 110, the stationary sensing unit 120, and the general control unit 130 although the connection state of the Wireless LAN module 161 is normal, the relaying unit 160 may switch the Wireless LAN module 161 to the CDMA module 162.
[83] On the contrary, if the relaying unit 160 has the difficulty to communicate using the
CDMA module 162, the relaying unit 160 may switch the CDMA module 162 to the Wireless LAN module 161. Also, the Wireless LAN module 161 and the CDMA module 162 of the relaying unit 160 may perform a reset operation if the communication difficulty is not recovered although the relaying unit 160 tries to reconnect several times.
[84] In the present embodiment, the system 100 for monitoring industrial disaster is applied to a vessel 10. However, the present invention is not limited thereto. The system 100 can be applied to other general manufacturing industry.
[85] While the present invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

Claims
[1] A system for monitoring industrial disaster in a manufacturing industry, comprising: a portable sensing unit worn by a user in a predetermined space of a vessel while the vessel is building, including a sensor unit for sensing a vibration signal generated by movement of a user and oxygen concentration information in a peripheral environment, a vibration generating unit for generating vibration if the sensed vibration signal or the sensed oxygen concentration information exceeds a reference range, and an emergency button unit for outputting an emergency signal when the emergency button unit is activated, and transmitting the vibration signal, the oxygen concentration information, and the emergency signal with a user identification number through a wireless link; a stationary sensing unit disposed at a predetermined space in the vessel, including a stationary sensing unit for sensing at least one of oxygen concentration, temperature, humidity, spark, luminance, and explosive gas in the space, and transmitting space sensing information having the sensed information with a space identification number; and a general control unit including a determining unit for generating a first emergency signal having user information and alert information related a corresponding user identification number and threshold range excess if at least one of the vibration signal and the oxygen concentration information transmitted from the portable sensing unit exceeds a threshold range, generating a second emergency signal including user information related to a corresponding user identification number when an emergency signal is received, and generating a third emergency signal having space information and alert information related a corresponding space identification number and threshold range excess if at least one of the space sensing information transmitted from the stationary sensing unit exceeds a threshold range, and an alarm activating unit for activating an alarm system when the emergency signals are generated.
[2] The system of claim 1, wherein the general control unit further includes a safety manager terminal for transmitting the first, second, and third emergency signals through a wireless link, and the safety manager terminal is carried by a safety manager and has a display unit for displaying information included in the first, second, and third emergency signals transmitted from the general control unit.
[3] The system of claim 2, wherein the portable sensing unit further includes a display unit for displaying information included in the first, second, and third emergency signals, transmitted from the general control unit.
[4] The system of claim 3, wherein the general control unit analyzes the vibration signal, the oxygen concentration information, and the space sensing information according to each user or each space and transmits the analysis result to the display unit of the safety manager terminal and the display unit of the portable sensing unit in real time, and the display units of the safety manager terminal and the portable sensing unit display the analysis result in real time.
[5] The system of anyone of claims 2 to 4, wherein the threshold range of the general control unit is divided into a warning range and a dangerous range that is more dangerous than the warning range, the alert information included in the first emergency signal or the third emergency signal is divided into warning range alert information and dangerous range alert information, and the system further includes at least one of current state information boards disposed at the outside of the vessel for receiving the first, second, and third emergency signals from the general control unit through a wireless link and displaying information included in the received emergency signals in texts or graphics in real time.
[6] The system of claim 1, wherein the stationary sensing unit further includes an infrared ray sensor for sensing movement of a moving object in the space and transmitting the sensed movement information to the general control unit with the space sensing information.
[7] The system of claim 1, further comprising a relaying unit for relaying wireless communication between the portable sensing unit and the general control unit or between the stationary sensing unit and the general control unit, wherein the relaying unit includes a wireless local area network (Wireless LAN) module and a code division multiple access (CDMA) module to communicate selectively using one of a Wireless LAN communication mode and a CDMA communication mode, and switches one of the Wireless LAN module and the CDMA module to the other if one is malfunctioned.
[8] The system of claim 1, wherein the general control unit further includes: a storing unit for storing the user identification number, personal information of each user, and working space information of each user as the user information and the space identification number, a name of each working space, a location of each working space, a map, and user information of users in each working space as the space information, and a history of vibration signals, oxygen concentration information, emergency signals, and space sensing information, transmitted from the portable sensing unit and the stationary sensing unit, by date and time, a prediction unit for analyzing the space sensing information transmitted from the stationary sensing unit and transmitting an emergency alert signal including danger information predicted by the analysis result to portable sensing units of users in a working space predicted to have the fire or explosion and adjacent working spaces, and to the safety manager terminal, the safety manager terminal displays the danger information included in the emergency alert signal through the display unit if the safety manager terminal receives the emergency alert signal from the prediction unit, and the portable sensing unit generates vibration through the vibration generating unit when the portable sensing unit receives the emergency alert signal from the prediction unit and displays the danger information included in the emergency alert signal through the display unit.
PCT/KR2007/003972 2007-02-28 2007-08-20 System for monitoring industrial disaster in the manufacturing industry WO2008105578A1 (en)

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Cited By (6)

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