CN110866644A - Emergency evacuation control method, device and system - Google Patents

Emergency evacuation control method, device and system Download PDF

Info

Publication number
CN110866644A
CN110866644A CN201911119922.3A CN201911119922A CN110866644A CN 110866644 A CN110866644 A CN 110866644A CN 201911119922 A CN201911119922 A CN 201911119922A CN 110866644 A CN110866644 A CN 110866644A
Authority
CN
China
Prior art keywords
evacuation
emergency
passengers
determining
passenger
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201911119922.3A
Other languages
Chinese (zh)
Inventor
张晓萍
杨勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commercial Aircraft Corp of China Ltd
Beijing Aeronautic Science and Technology Research Institute of COMAC
Original Assignee
Commercial Aircraft Corp of China Ltd
Beijing Aeronautic Science and Technology Research Institute of COMAC
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 Commercial Aircraft Corp of China Ltd, Beijing Aeronautic Science and Technology Research Institute of COMAC filed Critical Commercial Aircraft Corp of China Ltd
Priority to CN201911119922.3A priority Critical patent/CN110866644A/en
Publication of CN110866644A publication Critical patent/CN110866644A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION 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
    • G06Q10/00Administration; Management
    • G06Q10/04Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • G06Q10/047Optimisation of routes or paths, e.g. travelling salesman problem

Abstract

The embodiment of the invention discloses an emergency evacuation control method, device and system. The method comprises the following steps: determining an evacuation route of passengers according to the state information of the emergency exit and the passenger information; determining the evacuation direction of the emergency passage according to the evacuation path of the passengers; and an emergency evacuation indicator lamp arranged on the emergency passage is controlled to indicate the determined evacuation direction. Through operating the technical scheme that this application provided, can realize in time acquireing the effect of clear evacuation direction.

Description

Emergency evacuation control method, device and system
Technical Field
The embodiment of the invention relates to a path calculation technology, in particular to an emergency evacuation control method, device and system.
Background
When a large vehicle breaks down or has an emergency such as a traffic accident, emergency lighting equipment is often started for people on the vehicle to evacuate.
The emergency lighting equipment of the existing vehicle is usually composed of one part of an emergency exit slide lamp, an emergency passage lamp, an emergency evacuation floor light-emitting mark, an emergency exit position mark, an emergency exit mark, a near floor mark and an emergency lighting power supply.
For large-scale vehicles with more passenger cabin passages, passengers cannot timely acquire clear evacuation directions only by emergency lighting equipment.
Disclosure of Invention
The embodiment of the invention provides an emergency evacuation control method, an emergency evacuation control device and an emergency evacuation control system, which are used for achieving the effect of timely obtaining a clear evacuation direction.
In a first aspect, an embodiment of the present invention provides an emergency evacuation control method, including:
determining an evacuation route of passengers according to the state information of the emergency exit and the passenger information;
determining the evacuation direction of the emergency passage according to the evacuation path of the passengers;
and an emergency evacuation indicator lamp arranged on the emergency passage is controlled to indicate the determined evacuation direction.
In a second aspect, embodiments of the present invention also provide an emergency evacuation control apparatus, the apparatus comprising:
the evacuation path determining module is used for determining an evacuation path of passengers according to the state information of the emergency exit and the passenger information;
the evacuation direction determining module is used for determining the evacuation direction of the emergency channel according to the evacuation path of the passengers;
and the evacuation direction indicating module is used for controlling an emergency evacuation indicating lamp arranged on the emergency channel.
In a third aspect, an embodiment of the present invention further provides an emergency evacuation control system, including:
an emergency evacuation control device, a status sensor and an emergency evacuation indicator light; the state sensor is arranged at the emergency outlet; the emergency evacuation indicator lamp is arranged on the emergency channel;
the state sensor is used for detecting state information of the emergency exit;
the emergency evacuation control device is used for determining an evacuation path of passengers according to state information and passenger information of an emergency exit, and determining an evacuation direction of an emergency channel according to the evacuation path of the passengers;
the emergency evacuation indicator lamp is used for responding to a control command of the emergency evacuation control device and indicating the evacuation direction of the emergency passageway.
According to the embodiment of the invention, the evacuation route of passengers is determined according to the state information of the emergency exit and the passenger information; determining the evacuation direction of the emergency passage according to the evacuation path of the passengers; the emergency evacuation indicator lamp arranged on the emergency channel is controlled to indicate the determined evacuation direction, the problem that the clear evacuation direction cannot be timely obtained only by the emergency lighting equipment is solved, and the effect of timely obtaining the clear evacuation direction is achieved.
Drawings
Fig. 1 is a flowchart of an emergency evacuation control method according to an embodiment of the present invention;
fig. 2 is a flowchart of an emergency evacuation control method according to a second embodiment of the present invention;
fig. 3 is a schematic structural view of an emergency evacuation control apparatus according to a third embodiment of the present invention;
fig. 4 is a block diagram of an emergency evacuation control system according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flow chart of an emergency evacuation control method according to an embodiment of the present invention, which is applicable to a situation where an evacuation direction needs to be indicated during emergency evacuation, and which can be executed by an emergency evacuation control device according to an embodiment of the present invention, and the device can be implemented by software and/or hardware. Referring to fig. 1, the emergency evacuation control method according to the present embodiment includes:
and S110, determining the evacuation route of the passengers according to the state information of the emergency exits and the passenger information.
The emergency exit refers to a special exit which is arranged in a large-scale vehicle for evacuating passengers in case of emergency, and the large-scale vehicle can be a large-scale airplane, a ship and the like. Emergency exits are typically closed and open for egress of passengers in an emergency situation. The state information of the emergency exit is open or closed; the opening or closing of the emergency exits is generally in response to control commands by the staff, or is manually operated by the staff.
The passenger information is information corresponding to each passenger in the transportation means, and can be imported into the system of the corresponding transportation means by the information system for storing all passenger information. Passenger information may include location information and quantity information for passengers.
Wherein an evacuation path is a path for a passenger to move from a location where the passenger is located, such as a seating location, to an emergency exit. Evacuation routes for passengers may be determined from emergency egress status information and passenger information via computational models that simulate emergency evacuation, including, but not limited to, cellular automata, agents, social forces, and the like. These computational models and software are used to calculate the optimal path to the emergency exit for each person within a specified range, with the goal of minimizing the overall evacuation time. For example, the status information of the emergency exits and the passenger information are input into a computational model that will output an optimal evacuation path for each passenger. Software that has been fashioned to simulate emergency evacuation, including but not limited to STEPs, Pathfinder, etc., may also be applied directly.
And S120, determining the evacuation direction of the emergency channel according to the evacuation path of the passenger.
The evacuation path is composed of at least one section of emergency channel and evacuation direction of the emergency channel. The number of emergency corridors included in the evacuation path is determined by the calculated distance of the passenger from the corresponding emergency exit, e.g. the passenger is located right near emergency exit a, and the calculated distance of the passenger to emergency exit a includes only one emergency corridor.
When the evacuation route of the passengers is determined, the emergency passage through which the passengers need to pass during evacuation and the evacuation direction of the emergency passage are also determined.
And S130, controlling an emergency evacuation indicator lamp arranged on the emergency passage to indicate the determined evacuation direction.
The emergency evacuation indicator lamp is positioned in the emergency channel, and at least one emergency evacuation indicator lamp is arranged in the emergency channel. The emergency evacuation indicator light can indicate at least one direction, but only one direction for a certain evacuation; namely, according to the determined evacuation direction of the emergency passage, the indication direction in the emergency evacuation indicator lamp is displayed. This has the advantage that a chaotic state which may be caused by a direction change is avoided. At the moment, the original emergency lighting such as the emergency exit position mark, the emergency exit mark, the adjacent floor mark and the like still executes the lighting function.
The control of the indication direction of the emergency evacuation indicator lamp can be automatically completed by combining the emergency evacuation indicator lamp controller according to the calculation result of the calculation model for simulating the emergency evacuation. The controller of the emergency evacuation indicator light may also be manually controlled by personnel. The status signal of the emergency evacuation lights can be transmitted to the indicating/recording system of the aircraft, and the designer of the indicating/recording system decides whether and how to display the status of the emergency evacuation lights.
According to the technical scheme provided by the embodiment, the evacuation route of passengers is determined according to the state information of the emergency exit and the passenger information; determining the evacuation direction of the emergency passage according to the evacuation path of the passengers; the emergency evacuation indicator lamp arranged on the emergency channel is controlled to indicate the determined evacuation direction, the problem that the clear evacuation direction cannot be timely obtained only by the emergency lighting equipment is solved, and the effect of timely obtaining the clear evacuation direction is achieved.
On the basis of the above technical solution, optionally, before determining the evacuation route of the passenger according to the state information of the emergency exit and the passenger information, the method further includes: and acquiring the state information of the emergency exit from a state sensor arranged at the emergency exit.
Wherein, increase a state sensor in emergent exit for judge emergent exit's on-off state. After the state sensor acquires the state information of the emergency exit, the state information can be directly transmitted to a calculation model for acquiring an evacuation path.
The advantage of setting up like this is that, the on-off state of the emergent export of acquireing in time, transmits to the calculation model that is used for acquireing the route of withdrawing in order to obtain in time the direction of withdrawing.
On the basis of the above technical solution, optionally, determining an evacuation route for passengers according to the state information of the emergency exit and the passenger information includes:
and determining the evacuation route of passengers according to the opening and closing state of the emergency exit, the number of passengers and the passenger seat information.
The switch state of the emergency exit is used for determining the available state of the emergency exit; the number of passengers is used for determining the number of passengers distributed on each emergency channel; passenger seating information is used to determine how far each passenger is from the emergency exit. After the information is transmitted to a calculation model for simulating emergency evacuation, the calculation model comprehensively considers to obtain the optimal evacuation route from each passenger to an emergency exit, so that the overall evacuation time is shortest.
On the basis of the above embodiment, the evacuation route of passengers is determined according to the opening and closing state of the emergency exit, the number of passengers and the information of seats of the passengers, and the evacuation route which is optimal for all the people needing evacuation is obtained by comprehensively considering various information.
Example two
Fig. 2 is a flowchart of an emergency evacuation control method according to a second embodiment of the present invention. The technical scheme explains the process of determining the evacuation direction of the emergency passage. Compared with the scheme, the method for determining the evacuation direction of the emergency channel according to the evacuation route of the passengers comprises the following steps:
determining the number of passengers to be evacuated along the passing direction of the emergency passage according to the evacuation route of the passengers;
and taking the passing direction with the largest number of passengers as the evacuation direction of the emergency passage. Specifically, the flow of the emergency evacuation control method is shown in fig. 2:
s210, determining an evacuation route of passengers according to the state information of the emergency exits and the passenger information.
S220, determining the number of passengers to be evacuated along the passing direction of the emergency passage according to the evacuation route of the passengers.
Wherein, the passing direction of the passengers along the emergency passage can be obtained by the simulation analysis of the emergency evacuation. When the emergency evacuation simulation analysis system obtains the emergency exit opening signal, the emergency exit simulation analysis system can firstly perform one-time simulation analysis through the state information and the passenger information of the emergency exit to obtain an evacuation path of each passenger, the evacuation path comprises the passing direction of each passenger in each section of emergency passage, and at the moment, the quantity of passengers passing through the same emergency passage in different directions is counted.
And S230, taking the passing direction with the largest number of passengers as the evacuation direction of the emergency passage.
The passing direction with the largest number of passengers is determined as the evacuation direction of the emergency passage, namely only one evacuation direction can be provided in one section of emergency passage. For example, the evacuation simulation analysis system calculates that 30 persons should go to the left and 5 persons should go to the right in a section of the emergency passageway, and sets the evacuation direction of the section of the emergency passageway to the left. And at the moment, the analysis result of the evacuation route of each passenger obtained by the evacuation simulation analysis system is comprehensively summarized into the evacuation direction of each emergency channel.
The advantage that sets up like this prevents if calculate two or more than withdraw the direction in same emergency passage appear simultaneously, leads to follow-up simultaneously to instruct two or more than the direction for the passenger appears in disorder when withdrawing, influences and withdraws the progress. And the situation that the evacuation paths of a small number of people are calculated and then point to the dead road due to errors in calculation is prevented, and the function of correcting a calculation model is achieved.
And S240, controlling an emergency evacuation indicator lamp arranged on the emergency passage to indicate the determined evacuation direction.
The embodiment is based on the above embodiment, and determines the number of passengers to be evacuated in the passing direction of the emergency passageway according to the evacuation route of the passengers; the passing direction with the largest number of passengers is used as the evacuation direction of the emergency passage, so that the situation that the clear evacuation direction cannot be obtained is avoided, and the evacuation efficiency is improved.
EXAMPLE III
Fig. 3 is a schematic structural view of an emergency evacuation control apparatus according to a third embodiment of the present invention. The device can be realized by hardware and/or software, can execute the emergency evacuation control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. As shown in fig. 3, the apparatus includes:
an evacuation route determination module 310, configured to determine an evacuation route for passengers according to the state information of the emergency exit and the passenger information;
an evacuation direction determination module 320, configured to determine an evacuation direction of the emergency passageway according to the evacuation route of the passenger;
and an evacuation direction indicating module 330 for controlling emergency evacuation indicating lamps provided on the emergency passageway.
According to the embodiment of the invention, the evacuation route of passengers is determined according to the state information of the emergency exit and the passenger information; determining the evacuation direction of the emergency passage according to the evacuation path of the passengers; the emergency evacuation indicator lamp arranged on the emergency channel is controlled to indicate the determined evacuation direction, the problem that the clear evacuation direction cannot be timely obtained only by the emergency lighting equipment is solved, and the effect of timely obtaining the clear evacuation direction is achieved.
On the basis of the above technical solutions, optionally, the method further includes:
and the state information acquisition module is used for acquiring the state information of the emergency exit from a state sensor arranged at the emergency exit before the evacuation path determination module.
On the basis of the above technical solutions, optionally, the evacuation path determining module includes:
and the evacuation path determining unit is used for determining the evacuation path of passengers according to the switching state of the emergency exit, the number of passengers and the passenger seat information.
On the basis of the above technical solutions, optionally, the evacuation direction determining module includes:
the passenger number determining unit is used for determining the number of passengers to be evacuated along the passing direction of the emergency passage according to the evacuation route of the passengers;
and the evacuation direction determining unit is used for taking the traffic direction with the largest number of passengers as the evacuation direction of the emergency passage.
Example four
Fig. 4 is a block diagram of an emergency evacuation control system according to a fourth embodiment of the present invention, as shown in fig. 4, which includes an emergency evacuation control unit 41, a status sensor 42, and an emergency evacuation indicator lamp 43.
The status sensor 42 is arranged at the emergency exit; the emergency evacuation indicator lamp 43 is arranged on an emergency passage;
the state sensor 42 is used for detecting state information of an emergency exit;
the emergency evacuation control device 41 is used for determining an evacuation path of passengers according to the state information of an emergency exit and the information of the passengers, and determining an evacuation direction of an emergency channel according to the evacuation path of the passengers;
the emergency evacuation indicator lamp 43 is configured to indicate an evacuation direction of the emergency passageway in response to a control command of the emergency evacuation control device 41.
According to the technical scheme of the embodiment of the invention, the evacuation route of passengers is determined according to the state information of the emergency exit and the passenger information; determining the evacuation direction of the emergency passage according to the evacuation path of the passengers; the emergency evacuation indicator lamp arranged on the emergency channel is controlled to indicate the determined evacuation direction, the problem that the clear evacuation direction cannot be timely obtained only by the emergency lighting equipment is solved, and the effect of timely obtaining the clear evacuation direction is achieved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (9)

1. An emergency evacuation control method, characterized by comprising:
determining an evacuation route of passengers according to the state information of the emergency exit and the passenger information;
determining the evacuation direction of the emergency passage according to the evacuation path of the passengers;
and an emergency evacuation indicator lamp arranged on the emergency passage is controlled to indicate the determined evacuation direction.
2. The method of claim 1, wherein prior to determining the evacuation path for the passenger based on the status information for the emergency exit and the passenger information, further comprising:
and acquiring the state information of the emergency exit from a state sensor arranged at the emergency exit.
3. The method of claim 1, wherein determining an evacuation path for the passenger based on the status information for the emergency exit and the passenger information comprises:
and determining the evacuation route of passengers according to the opening and closing state of the emergency exit, the number of passengers and the passenger seat information.
4. The method of claim 1, wherein determining an evacuation direction for an emergency corridor based on the evacuation path of the passenger comprises:
determining the number of passengers to be evacuated along the passing direction of the emergency passage according to the evacuation route of the passengers;
and taking the passing direction with the largest number of passengers as the evacuation direction of the emergency passage.
5. An emergency evacuation control device, comprising:
the evacuation path determining module is used for determining an evacuation path of passengers according to the state information of the emergency exit and the passenger information;
the evacuation direction determining module is used for determining the evacuation direction of the emergency channel according to the evacuation path of the passengers;
and the evacuation direction indicating module is used for controlling an emergency evacuation indicating lamp arranged on the emergency channel.
6. The apparatus of claim 5, further comprising:
and the state information acquisition module is used for acquiring the state information of the emergency exit from a state sensor arranged at the emergency exit before the evacuation path determination module.
7. The apparatus of claim 5, wherein the evacuation path determination module comprises:
and the evacuation path determining unit is used for determining the evacuation path of passengers according to the switching state of the emergency exit, the number of passengers and the passenger seat information.
8. The apparatus of claim 5, wherein the evacuation direction determining module comprises:
the passenger number determining unit is used for determining the number of passengers to be evacuated along the passing direction of the emergency passage according to the evacuation route of the passengers;
and the evacuation direction determining unit is used for taking the traffic direction with the largest number of passengers as the evacuation direction of the emergency passage.
9. An emergency evacuation control system, comprising an emergency evacuation control device, a status sensor and an emergency evacuation indicator light; the state sensor is arranged at the emergency outlet; the emergency evacuation indicator lamp is arranged on the emergency channel;
the state sensor is used for detecting state information of the emergency exit;
the emergency evacuation control device is used for determining an evacuation path of passengers according to state information and passenger information of an emergency exit, and determining an evacuation direction of an emergency channel according to the evacuation path of the passengers;
the emergency evacuation indicator lamp is used for responding to a control command of the emergency evacuation control device and indicating the evacuation direction of the emergency passageway.
CN201911119922.3A 2019-11-15 2019-11-15 Emergency evacuation control method, device and system Pending CN110866644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911119922.3A CN110866644A (en) 2019-11-15 2019-11-15 Emergency evacuation control method, device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911119922.3A CN110866644A (en) 2019-11-15 2019-11-15 Emergency evacuation control method, device and system

Publications (1)

Publication Number Publication Date
CN110866644A true CN110866644A (en) 2020-03-06

Family

ID=69654595

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911119922.3A Pending CN110866644A (en) 2019-11-15 2019-11-15 Emergency evacuation control method, device and system

Country Status (1)

Country Link
CN (1) CN110866644A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001100678A (en) * 1999-09-27 2001-04-13 Matsushita Electric Works Ltd Luminaire for emergency exit sign system
JP2013242689A (en) * 2012-05-21 2013-12-05 Hochiki Corp Evacuation guidance system
CN104021643A (en) * 2014-06-17 2014-09-03 北京化工大学 Emergency evacuation method and system capable of intelligently changing directions
CN106255043A (en) * 2016-09-06 2016-12-21 西北工业大学 Passenger plane emergency evacuation guides system
CN107833411A (en) * 2017-10-27 2018-03-23 上海应用技术大学 Subway station accident emergency evacuation is saved oneself command system
CN109559466A (en) * 2019-01-24 2019-04-02 湖南恒茂高科股份有限公司 Security against fire indicating means and system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001100678A (en) * 1999-09-27 2001-04-13 Matsushita Electric Works Ltd Luminaire for emergency exit sign system
JP2013242689A (en) * 2012-05-21 2013-12-05 Hochiki Corp Evacuation guidance system
CN104021643A (en) * 2014-06-17 2014-09-03 北京化工大学 Emergency evacuation method and system capable of intelligently changing directions
CN106255043A (en) * 2016-09-06 2016-12-21 西北工业大学 Passenger plane emergency evacuation guides system
CN107833411A (en) * 2017-10-27 2018-03-23 上海应用技术大学 Subway station accident emergency evacuation is saved oneself command system
CN109559466A (en) * 2019-01-24 2019-04-02 湖南恒茂高科股份有限公司 Security against fire indicating means and system

Similar Documents

Publication Publication Date Title
US11842638B2 (en) Parallel remote control driving system for intelligent network vehicle
LU101335B1 (en) Smart emergency evacuation indicating system and method for a metro station
US20150344050A1 (en) Train traffic control inspection device, train traffic control inspection method and program
JP5526788B2 (en) Traffic signal control system, traffic signal controller, central device and program
CN104443406A (en) Aircraft systems and methods for detecting non-compliant pilot action
CN104816692A (en) Drunken driving warning system based on multi-point detection
CN108482374A (en) A kind of self-actuating brake method and its system based on signal lamp identification
CN105556248A (en) On-ground braking alerts for airplanes
KR20180079303A (en) Environment modeling device for vehicle driver assistance system
CN110362066A (en) Fortune control system and fortune prosecutor method under a kind of pilot steering mode based on magnetic floating system
CN109808690A (en) Based on target point apart from stopping a train at a target point rate smoothing planing method in automatic Pilot
JP2011034433A (en) Closed space lighting apparatus and closed space lighting system
JP7192703B2 (en) VEHICLE, VEHICLE CONTROL METHOD AND OPERATION MANAGEMENT SYSTEM
CN113470439A (en) Method and system for solving control conflict of medium and small airports based on artificial intelligence
US20150331895A1 (en) Control logic analyzer and method thereof
JP2000347558A (en) Air traffic controller training device
CN110866644A (en) Emergency evacuation control method, device and system
JP5338948B2 (en) Information providing apparatus and method, and computer program
CN109189567A (en) Time-delay calculation method, apparatus, equipment and computer readable storage medium
CN108447306A (en) Real time position shares the analogy method of intelligent collision warning between No-shell culture conflict vehicle
CN115915544A (en) Light control based ship in-out brake and berthing guide system
JP2004330797A (en) Train door guide display system and train door guide display method
CN115206075A (en) Tunnel secondary accident defense alarm system and method
CN115662027A (en) Method and device for processing emergency event of railway station and electronic equipment
JPH07215614A (en) Monitor and control device of elevator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination