NL2030590B1 - Emergency escape prewarning indication system of passenger ship - Google Patents

Emergency escape prewarning indication system of passenger ship Download PDF

Info

Publication number
NL2030590B1
NL2030590B1 NL2030590A NL2030590A NL2030590B1 NL 2030590 B1 NL2030590 B1 NL 2030590B1 NL 2030590 A NL2030590 A NL 2030590A NL 2030590 A NL2030590 A NL 2030590A NL 2030590 B1 NL2030590 B1 NL 2030590B1
Authority
NL
Netherlands
Prior art keywords
information
module
ship
passage
emergency
Prior art date
Application number
NL2030590A
Other languages
Dutch (nl)
Inventor
Ma Liutao
Su Ang
Liu Zhao
Jiang Yujie
Peng Yufei
Liu Sen
Ma Quandang
Lv Nengchao
Zhang Qinlin
Tan Hengtao
Wan Chengpeng
Zhang Dingze
Zhang Jinfen
Original Assignee
Univ Wuhan Tech
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 Univ Wuhan Tech filed Critical Univ Wuhan Tech
Priority to NL2030590A priority Critical patent/NL2030590B1/en
Application granted granted Critical
Publication of NL2030590B1 publication Critical patent/NL2030590B1/en

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
    • G08B7/066Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources guiding along a path, e.g. evacuation path lighting strip
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/22Status alarms responsive to presence or absence of persons

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)

Abstract

The present invention discloses an emergency escape prewarning indication system of a passenger ship. The system can automatically determine safety and jam conditions of each passage on a ship and can also instruct safe and unobstructed passages to on-board persons by means of displaying on a display screen and voice prompt.

Description

EMERGENCY ESCAPE PREWARNING INDICATION SYSTEM OF
PASSENGER SHIP
TECHNICAL FIELD
[01] The present invention belongs to the field of emergency escape of on-board persons, and particularly relates to an emergency escape prewarning indication system of a passenger ship.
BACKGROUND ART
[02] The current escape indication devices are mainly indicator lamps and indicator boards, and mostly visual displays. In this regard, there are mainly the following patents in China: Patent Publication No. CN105427554A. Although the system can receive prewarning information in multiple ways to improve the prewarning accuracy, the system cannot effectively command persons to escape in case of a danger, and cannot intelligently identify the safety of an escape route. It is only suitable for areas with relatively developed communications on land, and is not suitable for passenger ships and a relatively complex environment on water.
SUMMARY
[03] The technical problem solved by the present invention is to provide an emergency escape prewarning indication system of a passenger ship. The system can automatically determine safety and jam conditions of each passage on a ship and can also instruct safe and unobstructed passages to on-board persons by means of displaying on a display screen and voice prompt.
[04] The technical solution used by the present invention to solve the technical problem: an emergency escape prewarning indication system of a passenger ship is provided, including a system power supply module, an information collection module, an information analysis module, and a prewarning indication module. The system power supply module supplies electric energy to the emergency escape prewarning indication system of the passenger ship; the information collection module acquires a movement velocity of a ship body of the passenger ship, a transverse inclination angle and a longitudinal inclination angle of the passenger ship, smog in each compartment and passage, and a jam degree in each passage in real time by means of each set of information receiving equipment, and transmits the above information to the information analysis module; the information analysis module is mainly composed of a central controller and a relevant circuit thereof; the central controller extracts and analyzes the information received by the information collection module, determines the type of the passage according to the safety and jam conditions in each passage, and transmits the type to the prewarning indication module; and the prewarning indication module processes the received information, and instructs a correct escape route to persons by means of an emergency indicator lamp through a light emitting diode (LED) display screen and voice prompt.
[05] The present invention has the beneficial effects that I, the present invention can receive the information monitored by various sets of prewarning equipment, devices, and sensors on the ship, perform operations such as communication control on all nodes in the passenger ship, and extract node data on a CAN bus on the ship, so as to realize fault detection data extraction, storage, filtering, and analysis; II, the present invention can quickly and intelligently identify danger data and achieve promptness of information collection and reliability of information transmission, and can timely store and analyze data and determine the safety degree and the jam degree of each passage; II, the present invention has extremely high management efficiency so that all the prewarning information on the ship can be quickly converted after being collected and summarized and enter the central processor, and the central processor can directly acquire the desired information and concentrate on processing the information; in case of a danger, a safe escape route 1s automatically designed according to the acquired information; persons are helped to leave a dangerous area in time by means of linkage control of an intelligent emergency indicator lamp, and the safety of the persons is ensured; IV, by the use of the intelligent emergency indicator lamp, the present invention can sound an alarm by sound and light and display the safety degree and the jam degree of the passage where it is located, and point out a safe escape route for the on-board persons, thus improving the evacuation efficiency.
BRIEFT DESCRIPTION OF THE DRAWINGS
[06] The present invention is further described below in combination with the accompanying drawings and embodiments. In the drawing:
[07] FIG. 1 is a block diagram of an entire structure of an emergency escape prewarning indication system of a passenger ship according to the embodiments of the present invention;
[08] FIG. 2 is an overall work flow diagram of an emergency escape prewarning indication system of a passenger ship according to the embodiments of the present invention;
[09] FIG. 3 is a work flow diagram of an emergency indicator lamp;
[10] FIG. 4 1s a standard diagram of graded indication of an emergency indicator lamp; and
[11] FIG. 5 is a top view of specific embodiments of the present invention.
[12] In the drawings: 1: information system terminal node; 2: system power supply module; 3: information transmitting and receiving module; 4: information analysis module; 5: prewarning indication module; 6: ship CAN bus; 7: stern left-sided passage; 8: amidship left-sided passage; 9: prow left-sided passage; 10: central aisle; 11: ship body right-sided passage.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[13] In the embodiments of the present invention, an emergency escape prewarning indication system of a passenger ship is provided, including a system power supply module, an information collection module, an information analysis module, and a prewarning indication module. The system power supply module supplies electric energy to the emergency escape prewarning indication system of the passenger ship; the information collection module acquires a movement velocity of a ship body of the passenger ship, a transverse inclination angle and a longitudinal inclination angle of the passenger ship, smog in each compartment and passage, and a jam degree in each passage in real time by means of each set of information receiving equipment, and transmits the above information to the information analysis module; the information analysis module is mainly composed of a central controller and a relevant circuit thereof; the central controller extracts and analyzes the information received by the information collection module, determines the type of the passage according to the safety and jam conditions in each passage, and transmits the type to the prewarning indication module; and the prewarning indication module processes the received information, and instructs a correct escape route to persons by means of an emergency indicator lamp through a light emitting diode (LED) display screen and voice prompt.
[14] Further, the system power supply module includes a ship power supply line, an emergency power supply line, and a selector switch, is used to supply electric energy to the whole system, and has a ship power supply end and an emergency power supply end; and the selector switch is connected to a ship power supply circuit and an emergency power supply circuit and is used to quickly switch an emergency power supply in an emergency.
[15] Further, the information collection module includes a CAN bus transmitting and receiving circuit and information receiving equipment; the information receiving equipment in the information collection module includes velocity information receiving equipment, transverse inclination angle and longitudinal inclination angle information receiving equipment, smog concentration information receiving equipment, monitored information receiving equipment, and passenger ship flooding information receiving equipment; and all the sets of information receiving equipment are connected with a ship
CAN bus, and are used to in real time receive danger data information transmitted by all information system terminal nodes to the ship CAN bus and detected by all information systems and forward same. The information system terminal nodes include a fire fighting system terminal node, a monitoring system terminal node, a flooding detection system terminal node, and an inclination angle measurement system terminal node, and are used to transmit the danger data information detected by all the information systems on the ship to the ship CAN bus.
[16] Further, the information collected by the monitored information receiving equipment is information of the number of personnel in each passage detected by a face identification camera and an infrared network camera on the ship. The information analysis module defines each passage as a safe passage, a jammed passage, or a dangerous passage according to the received information of the monitored information receiving equipment.
[17] Further, the central controller in the information analysis module is an ARM micro controller and can extract the received data and determine the type of the passage after analysis.
[18] Further, a data input end and a data output end in the information analysis module are respectively connected to a serial data end of an information collection and transmission module and used to receive the summarized passage node data and send instruction information related to the passage type.
[19] Further, the LED display screen displays a green arrow, a yellow warning sign, and a red prohibition icon according to a state indicator of each passage.
[20] Further, the emergency indicator lamp performs graded indication according to received passage type classification information, and each emergency indicator lamp work alone, without interference.
[21] Further, a central processor of the emergency indicator lamp is an ARM micro- processor, and the LED display screen and a loudspeaker can be controlled according to the received passage type classification information to perform corresponding sound and light indications according to the passage type.
[22] Further, the surface brightness of the LED display screen is more than or equal to 15 cd/m2.
[23] The emergency indicator lamp includes an emergency indicator lamp processor, a digital/analog (D/A) converter, the LED display screen, and the loudspeaker. The emergency indicator lamp performs graded indication according to the received passage type classification information; a processor in the prewarning indication module is an
ARM micro-processor, and the LED display screen and the loudspeaker can be controlled according to the received passage type classification information to perform corresponding sound and light indications according to the passage type. The LED display screen is an LED dot-matrix display screen which is capable of realizing high- quality ultrahigh-brightness LED luminescence, has the surface brightness of more than or equal to 15 cd/m2, is uniform and soft, and has high penetrating power.
[24] In one preferred embodiment of the present invention, an emergency escape prewarning indication system of a passenger ship is provided. FIG. 1 illustrates an overall block diagram of the emergency escape prewarning indication system of the passenger ship. The emergency escape prewarning indication system of the passenger ship is composed of information system terminal nodes 1 on the ship, a system power supply module 2, an information transmitting and receiving module 3, an information analysis module 4, a prewarning indication module 5, and a ship CAN bus 6. The information system terminal nodes 1 include a fire fighting system terminal node, a monitoring system terminal node, a flooding detection system terminal node, and an inclination angle measurement system terminal node, and are used to transmit danger data information detected by all information systems to the ship CAN bus 6. The ship
CAN bus 6 is used to send state information of the information system terminal nodes 1 to the information transmitting and receiving module; the system power supply module 2 is composed of a ship power supply circuit, an emergency power supply circuit, and a selector switch, and has a ship power supply end and an emergency power supply end; the selector switch is connected to the ship power supply circuit and the emergency power supply circuit, and is used to quickly switch a ship power supply to an emergency power supply in an emergency when the ship power supply cannot be used; and the information transmitting and receiving module 3 includes a CAN bus transmitting and receiving circuit and information receiving equipment, and has a power input end, a serial data end, and a transmitting and receiving end. The CAN bus transmitting and receiving circuit is connected to the transmitting and receiving end of the ship CAN bus 6. The power input end of the information transmitting and receiving module 3 is connected to the system power supply module 2 and is used to supply electric energy to the whole information transmitting and receiving module 3; the transmitting and receiving end is connected to the ship CAN bus 6 and is used to receive node data on the ship CAN bus 6 in real time, transmit the node data to the information receiving equipment by means of a CAN bus transmitting and receiving circuit for summarization, then transmit the node data to a central controller in the information analysis module 4; the serial data end is used to output the processed node data; the data input/output end of the information analysis module 4 is connected to the serial data end of the information transmitting and receiving module 3 and is used to receive the summarized node data of all the passages, analyze and process the states of the nodes of all the current passages, and send instruction information by means of the CAN bus transmitting and receiving circuit in the information transmitting and receiving module 3 by means of a serial-port based protocol; and the prewarning indication module 5 is connected to the transmitting and receiving end of the ship CAN bus 6 and is used to receive the instruction information forwarded by the information transmitting and receiving module 3 and sent from the information analysis module 4. The ship CAN bus 6 is at least connected with one intelligent emergency indicator lamp terminal node.
[25] As shown in FIG. 2, a specific work flow of the embodiments of the present invention is as follows:
[26] in first step, in case of an accident, electric signal danger data information detected by a fire fighting system, a monitoring system, a flooding detection system, and an inclination angle measurement system on the ship are concentrated and are sent to the ship CAN bus 6 by means of all the information system terminal nodes 1;
[27] in second step, the information transmitting and receiving module 3 extracts the related danger data information on the ship CAN bus 6 and transmits same to the information receiving equipment by means of the CAN bus transmitting and receiving circuit for summarizing;
[28] in third step, the electric signal danger data information received by the information receiving equipment is transmitted to the central controller; the central controller extracts, analyzes, and determines the information; firstly, whether a passage is safe 1s determined according to whether there is smog or flooding in the passage, and an unsafe passage is defined as a "dangerous passage";
[29] in fourth step, the central controller continues to analyze and determine the data in the remaining passages except for the "dangerous passage", and determine a jam degree in the passage according to the number of personnel in the passage and a moving speed; a passage with a relatively large jam degree is defined as a "jammed passage", and an unobstructed passage with a relatively small jam degree is defined as a "green passage"; at the end of determination, the central controller transmits type information of the definition of the determined passage to the information transmitting and receiving module 3;
[30] in fifth step, at the end of determination, the central controller stores and summarizes the type information of the definition of the determined passage, analyzes and connects all the green passages (or jammed passages) to form a route that can help on-board persons to leave a dangerous area, i.e., a safe route that helps the on-board persons to escape, and transmits the route to the information transmitting and receiving module 3; the central controller can control all the intelligent emergency indicator lamps in a linkage manner to enable the lamps to work alone; and
[31] in sixth step, the ship CAN bus 6 transmits the related information to the related node of the intelligent emergency indicator lamp in the passage corresponding to the prewarning display module 5. After receiving the type information of the passage, the emergency indicator lamp automatically realizes corresponding displaying and voice prompt. All the routes that are formed by connecting the green passages (or jammed passages) and help the on-board persons to leave the dangerous area are the safe escape routes supplied in the present invention to the on-board persons.
[32] In addition, when the passages in the designed safe escape routes are in danger, or when the danger in the dangerous passage is relieved, the system can quickly remake a safe escape route in time according to feedback information of all the information systems on the ship.
[33] FIG. 3 illustrates a work flow diagram of the intelligent emergency indicator lamp. In case of a danger in the passenger ship, the central processor extracts and analyzes the passage classification information forwarded by the ship CAN bus 6 and sent from the information analysis module 4 to determine an indicated type of the indicator lamp. A digital signal is converted into an electrical signal through the D/A converter and transmitted to the LED display screen and the loudspeaker; the LED display screen is controlled to display a corresponding indication signal, and the loudspeaker is controlled to make a voice prompt, so as to reflect the safety and jam in the passage where it is located.
[34] FIG. 4 illustrates a relevant standard of graded indication of the emergency indicator lamp. Escape direction indication: the LED display screens are automatically arranged into a green arrow and flicker, and a voice prompt is made: "Please follow the indication arrow to escape". Jam degree indication: the LED display screens are automatically arranged into a yellow warning mark and flicker, and a voice prompt is made: "Passage is jammed". Danger warning indication: the LED display screens are automatically arranged into a red prohibition icon, and a voice prompt is made: "Passage is dangerous". All the escape indications can be used alone or in a combined manner.
For the passages classified to the safe escape route, the green passages are only for indicating the escape direction, and the jammed passages indicate both the escape direction and the jam degree. The passages that are not classified to the safe escape route indicate the escape direction and danger warning in a unified way. The intelligent emergency indicator lamp can clearly point out a correct and safe escape route for passengers at a critical moment by means of flickering light signs and voice prompts.
[35] FIG. 5 illustrates a specific implementation case of the emergency escape prewarning indication system of the passenger ship on a certain floor of a medium-sized passenger ship. If the passenger ship is in an overturning danger since it tilts towards the left side, it is analyzed that: since the starboard of the passenger ship is relatively far from the water surface, a person who jumps overboard and escapes will hit the ship body easily, which causes secondary injury to the human body.
Therefore, all the passages 11 on the right side of the ship body are not suitable for escaping and are displayed in a red prohibition sign.
For the passages on the left side of the ship body, since the passage 7 onthe left side of the stern is on fire or flooded, this passage is a dangerous passage, and the intelligent emergency indicator lamp is displayed into a red prohibition sign.
The passage 9 on the left side of the prow has personnel congestion, and the intelligent emergency indicator lamp is displayed into a yellow warning sign.
Only the amidship passage 8 on the left side and the central aisle 10 are unobstructed, and the intelligent emergency indicator lamps are displayed into green arrows.
Therefore, routes from the central aisle 10 to the passage 9 on the left side of the prow and the amidship passage 8 on the left side are safe escape routes, and the route from the central aisle 10 to the amidship passage 8 on the left side is the best escape route.

Claims (3)

Conclusies l. Prewaarschuwingsindicatiesysteem voor bij een nooduitgang van een passagiersschip, gekenmerkt door een systeemvoedingsmodule, een informatieverzamelmodule, een informatie-analysemodule en een prewaarschuwingsindicatiemodule, waarbij de systeemvoedingsmodule elektrische energie levert aan het prewaarschuwingsindictiesysteem voor bij een nooduitgang van een passagiersschip; waarbij de informatieverzamelmodule realtime een bewegingssnelheid van een scheepsromp van het passagiersschip, een dwarshellingshoek en een longitudinale hellingshoek van het passagiersschip, smog in elk compartiment en in elke doorgang, en een opstoppingsgraad in elke doorgang verkrijgt door middel van elke set informatie- ontvangende apparatuur, en de bovenstaande informatie naar de informatie- analysemodule verzendt; waarbij de informatie-analysemodule in hoofdzaak bestaat uit een centrale besturingseenheid en een relevant circuit daarvan; waarbij de centrale besturingseenheid de informatie extraheert en analyseert die is ontvangen door de informatieverzamelmodule, het type doorgang bepaalt in overeenstemming met de veiligheids- en opstoppingsomstandigheden in elke doorgang, en het type verzendt naar de prewaarschuwingsindicatiemodule; en waarbij de voorwaarschuwingsindicatiemodule de ontvangen informatie verwerkt, en een juiste vluchtroute instrueert aan personen door middel van een noodindicatielamp via een lichtgevende diode (LED) scherm en gesproken woord.Conclusions l. Passenger ship emergency exit pre-warning indication system, comprising a system power module, an information gathering module, an information analysis module and a pre-warning indication module, the system power module supplying electrical power to the passenger ship emergency exit pre-warning indication system; wherein the information gathering module obtains in real time a hull moving speed of the passenger ship, a bank angle and a longitudinal heeling angle of the passenger ship, smog in each compartment and in each passage, and a congestion degree in each passage through each set of information receiving equipment, and sends the above information to the information analysis module; wherein the information analysis module consists essentially of a central control unit and a relevant circuit thereof; wherein the central control unit extracts and analyzes the information received by the information collection module, determines the type of passage in accordance with the safety and congestion conditions in each passage, and transmits the type to the pre-warning indication module; and wherein the pre-warning indication module processes the information received, and instructs a proper escape route to persons by means of an emergency indicator lamp via a light-emitting diode (LED) screen and spoken word. 2. Prewaarschuwingsindicatiesysteem voor bij een nooduitgang van een passagiersschip volgens conclusie 1, met het kenmerk, dat de voedingsmodule van het systeem een voedingskabel voor het schip, een noodvoedingskabel en een keuzeschakelaar omvat, die wordt gebruikt om elektrische energie te leveren aan het hele systeem, en een uiteinde heeft voor de voeding van een schip en een uiteinde voor een noodstroomvoorziening; en waarbij de keuzeschakelaar is verbonden met een voedingscircuit van een schip en een noodvoedingscircuit en wordt gebruikt om in noodgevallen snel een noodvoeding te schakelen.An emergency exit pre-warning indication system of a passenger ship according to claim 1, characterized in that the power supply module of the system comprises a ship power supply cable, an emergency power supply cable and a selector switch used to supply electrical power to the entire system, and has one end for a ship's power supply and one end for an emergency power supply; and wherein the selector switch is connected to a ship's power supply circuit and an emergency power supply circuit and is used to quickly switch an emergency power supply in an emergency. 3. Prewaarschuwingsindicatiesysteem voor bij een nooduitgang van een passagiersschip volgens conclusie 1 of 2, met het kenmerk, dat de informatieverzamelmodule een CAN-bus zend- en ontvangcircuit en informatie- ontvangstapparatuur omvat; waarbij de informatie-ontvangapparatuur in de informatieverzamelmodule snelheidsinformatie-ontvangapparatuur, transversale hellingshoek en longitudinale hellingshoekinformatie-ontvangapparatuur, smogconcentratie-informatie- ontvangapparatuur, bewakingsinformatie-ontvangapparatuur, en passagiersschipoverstromingsinformatie-ontvangapparatuur omvat; en waarbij alle sets informatie-ontvangapparatuur zijn verbonden met een CAN-bus van het schip.An emergency exit pre-warning indication system of a passenger ship according to claim 1 or 2, characterized in that the information gathering module comprises a CAN bus transmitting and receiving circuit and information receiving equipment; wherein the information receiving equipment in the information collecting module includes speed information receiving equipment, transverse inclination angle and longitudinal inclination angle information receiving equipment, smog concentration information receiving equipment, monitoring information receiving equipment, and passenger ship flood information receiving equipment; and wherein all sets of information receiving equipment are connected to a CAN bus of the vessel.
NL2030590A 2022-01-18 2022-01-18 Emergency escape prewarning indication system of passenger ship NL2030590B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2030590A NL2030590B1 (en) 2022-01-18 2022-01-18 Emergency escape prewarning indication system of passenger ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2030590A NL2030590B1 (en) 2022-01-18 2022-01-18 Emergency escape prewarning indication system of passenger ship

Publications (1)

Publication Number Publication Date
NL2030590B1 true NL2030590B1 (en) 2023-07-27

Family

ID=87378612

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2030590A NL2030590B1 (en) 2022-01-18 2022-01-18 Emergency escape prewarning indication system of passenger ship

Country Status (1)

Country Link
NL (1) NL2030590B1 (en)

Similar Documents

Publication Publication Date Title
KR101354772B1 (en) Intelligent evacuation guidance system and method using power line communication
US20050128070A1 (en) Building emergency path finding systems and method
CN107505868A (en) The early warning of passenger boat emergency escape indicates system
US20040075572A1 (en) Method and apparatus for marking an escape route
US20080258933A1 (en) Emergency traffic light system
KR20120064543A (en) Apparatus and method for light indication
CN210225815U (en) Anti-congestion fire emergency guidance system
CN108574930A (en) A kind of ship's service lighting escape guiding control system
NL2030590B1 (en) Emergency escape prewarning indication system of passenger ship
CN113295165A (en) Fire alarm emergency system based on wisdom garden
JP2011227609A (en) Notification device, bridge navigational watch alarm system, method for displaying stage changing state, and program for displaying stage changing state
CN112604222A (en) Wisdom fire control management and control system
CN114626281A (en) Ship escape mark guiding system and method
CN208271348U (en) Automatic induction escape system
CN206819500U (en) A kind of forest fire long-distance monitorng device
WO2016047852A1 (en) System and method for monitoring ship navigation using rule-based algorithm
CN216332641U (en) Intelligent warning light system for ship
CN109733552A (en) A kind of driver's cabin integrated console based on information integration
CN213183002U (en) Building fire evacuation indicating device based on RFID technology
CN112770462A (en) Lighting system and control method thereof
KR101023787B1 (en) System for controlling group of turnout pilot lamp
CN114170953A (en) Passenger ship LED low-position lighting lamp and control method
CN113903163A (en) Water area safety system and water area lifesaving method
CN111609856A (en) Guiding and recognizing system for emergency escape path of ship
CN106211525A (en) A kind of intelligent emergent illumination indicating lamp for emergency and working method thereof