Evacuation indication system and evacuation indication method for subway carriages

Abstract

The invention provides an evacuation indication system and method for subway carriages. The system comprises a fire monitoring module, a crowd density monitoring module, a train central control module and a multi-information combined intelligent evacuation indication module. The fire monitoring module is used for monitoring fire data in each subway carriage and generating a danger warning signal according to the fire data; the crowd density monitoring module is used for monitoring crowd density data in each subway carriage; the train central control module is used for planning an evacuation strategy of each subway carriage according to the danger warning signal and the crowd density data; and the multi-information combined intelligent evacuation indication module is used for transmitting the evacuation strategy of each subway carriage to passengers by using multiple information transmission modes. Thus, real-time evacuation path guidance can be provided for passengers, the passengers are effectively prevented from entering dangerous areas where fire smoke spreads by mistake and crowding subway carriages, and therefore evacuation efficiency and evacuation safety are improved.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to an evacuation indication system and an evacuation indication method for a subway car. Background Art

[0002] With the rapid development of subways, subways have become an important means of public transportation in large cities. In cities where subway systems have been built and put into operation, a large number of passengers use subways as their main means of transportation every day, taking subways to work, school, shopping centers, and entertainment venues. The most dangerous and likely place for subway accidents is the subway car. During the evacuation process, the passengers in the subway car are also the farthest from the safe area. For passengers in the car, the first step of evacuation is to safely transfer from the car to the outside. This process is mainly affected by personnel parameters and vehicle body structure. Subway trains have the characteristics of strong airtightness, large personnel mobility, and large fire load. After a fire occurs, it is easy to form thick smoke and heat waves, and at the same time produce a large amount of toxic gases, which have an adverse effect on the safe evacuation of personnel. If the safe evacuation of people in the train cannot be organized quickly and safely, serious safety accidents will usually occur. Summary of the invention

[0003] In view of this, the purpose of the present application is to provide an evacuation indication system and an evacuation indication method for a subway car, so as to solve the problem of low evacuation efficiency and easy safety accidents when a fire occurs in the existing subway car.

[0004] The embodiment of the present application provides an evacuation indication system for a subway car, the system comprising: a fire monitoring module, a crowd density monitoring module, a train central control module, and a multi-information joint intelligent evacuation indication module;

[0005] The fire monitoring module is used to monitor the fire data in each subway car, generate a danger warning signal according to the fire data, and send the danger warning signal to the train central control module;

[0006] The crowd density monitoring module is used to monitor the crowd density data in each subway car and send the crowd density data to the train central control module;

[0007] The train central control module is used to plan the evacuation strategy of each subway car according to the danger warning signal and the crowd density data, and send the evacuation strategy of each subway car to the multi-information joint intelligent evacuation indication module;

[0008] The multi-information joint intelligent evacuation indication module is used to convey the evacuation strategy of each subway car to passengers using multiple information transmission methods.

[0009] Furthermore, when the fire monitoring module is used to monitor the fire data in each subway car and generate an alarm signal according to the fire data, the fire monitoring module is used to:

[0010] The fire data in each subway car is collected by sensors installed in the subway car; wherein the fire data includes smoke concentration data, temperature data and visibility data; the sensors are installed beside the doors of each subway car and are located at a characteristic height of the human body;

[0011] For each subway car, determining whether each type of data in the fire data in the subway car meets the personnel evacuation safety index;

[0012] If any of the data does not meet the safety index for evacuation of personnel, a danger alarm signal for the subway car will be generated.

[0013] Furthermore, when the crowd density monitoring module is used to monitor the crowd density data in each subway car, the crowd density monitoring module is used to:

[0014] The camera installed in each subway car collects the pictures in each subway car;

[0015] Based on the carriage images, a human body detection algorithm is used to determine the overall crowd density in each subway carriage and the crowd evacuation speed at the doors.

[0016] Furthermore, when the train central control module is used to plan the evacuation strategy of each subway car according to the danger warning signal and the crowd density data, the train central control module is used to:

[0017] Determining a dangerous subway car with a fire hazard according to the danger warning signal;

[0018] The fire hazard level of the dangerous subway car is determined as high hazard, the fire hazard level of the adjacent subway cars of the dangerous subway car is determined as medium hazard, and the fire hazard level of other subway cars is determined as low hazard;

[0019] According to the fire hazard level of each subway car, an evacuation strategy for each subway car is planned; wherein the evacuation strategy includes indicating the fire hazard level of each subway car, guiding passengers in high-risk subway cars to evacuate to other subway cars, reminding passengers in medium-risk subway cars to pay attention to the risk of fire spread, and reminding passengers in low-risk subway cars to stay in their original subway cars.

[0020] Furthermore, when the train central control module is used to plan the evacuation strategy of each subway car according to the danger warning signal and the crowd density data, the train central control module is also used to:

[0021] After the subway train arrives at the station, the doors of subway cars with high fire risk level are kept closed, and the doors of other subway cars are opened;

[0022] Based on the crowd density data of each subway car, predict the evacuation time of each subway car;

[0023] Compare the evacuation times of adjacent subway cars and plan an evacuation strategy for each subway car; wherein the evacuation strategy includes guiding passengers in a crowded subway car to evacuate from doors of adjacent subway cars; the crowded subway car refers to a subway car whose evacuation time difference with an adjacent subway car is greater than a preset threshold.

[0024] Furthermore, when the multi-information joint intelligent evacuation instruction module is used to transmit the evacuation strategy of each subway car to passengers using multiple information transmission methods, the multi-information joint intelligent evacuation instruction module is used to:

[0025] Controlling the display screen in each subway car to display the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating;

[0026] Controlling the voice equipment in each subway car to broadcast the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating;

[0027] The evacuation indicator lights installed in each subway car are controlled to display the light color corresponding to the fire hazard level of the subway car.

[0028] Furthermore, each subway car is equipped with a plurality of wireless communication tags; when the multi-information joint intelligent evacuation indication module is used to transmit the evacuation strategy of each subway car to passengers using a plurality of information transmission methods, the multi-information joint intelligent evacuation indication module is also used to:

[0029] The evacuation strategy of each subway car is published to the target page in the server, so that passengers can read any wireless communication tag through the mobile terminal to obtain the serial number and publishing address of the subway car where they are located, use the mobile terminal to access the target page according to the publishing address, and pass the serial number of the subway car to the target page to obtain the evacuation strategy corresponding to the subway car where they are located.

[0030] The embodiment of the present application also provides a subway car evacuation indication method, which is applied to an evacuation indication system for a subway car as described above; the system includes: a fire monitoring module, a crowd density monitoring module, a train central control module, and a multi-information joint intelligent evacuation indication module; the method includes:

[0031] The fire monitoring module monitors the fire data in each subway car, generates a danger warning signal according to the fire data, and sends the danger warning signal to the train central control module;

[0032] The crowd density monitoring module monitors the crowd density in each subway car and sends the crowd density to the train central control module;

[0033] The train central control module plans an evacuation strategy for each subway car according to the danger warning signal and the crowd density, and sends the evacuation strategy for each subway car to the multi-information joint intelligent evacuation indication module;

[0034] The multi-information joint intelligent evacuation indication module uses multiple information transmission methods to transmit the evacuation strategy of each subway car to passengers.

[0035] An embodiment of the present application also provides an electronic device, including: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the above-mentioned subway car evacuation indication method are performed.

[0036] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the above-mentioned method for indicating the evacuation of a subway car are executed.

[0037] The embodiment of the present application provides an evacuation indication system and evacuation indication method for a subway car. The train central control module plans the evacuation strategy for each subway car according to the fire-related danger warning signal and the crowd density in the subway car, and the multi-information joint intelligent evacuation indication module uses multiple information transmission methods to provide guidance. In this way, real-time evacuation path guidance can be provided to passengers, effectively preventing passengers from mistakenly entering dangerous areas where fire smoke spreads and crowded subway cars, thereby improving evacuation efficiency and evacuation safety.

[0038] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic structural diagram of an evacuation indication system for a subway car provided in an embodiment of the present application is shown;

[0041] Figure 2 A schematic diagram showing the operation of an evacuation indication system for a subway car provided by an embodiment of the present application in a subway car is shown;

[0042] Figure 3 A working principle diagram of an evacuation indication system for a subway car provided in an embodiment of the present application is shown;

[0043] Figure 4 A flowchart of a subway car evacuation indication method provided in an embodiment of the present application is shown;

[0044] Figure 5 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0045] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, each other embodiment obtained by those skilled in the art without making creative work belongs to the scope of protection of the present application.

[0046] According to research, with the rapid development of subways, subways have become an important means of public transportation in large cities. In cities where subway systems have been built and put into operation, a large number of passengers use subways as their main means of transportation every day, taking subways to work, school, shopping centers and entertainment venues. The most dangerous and likely place for subway accidents is the subway car. During the evacuation process, the passengers in the subway car are also the farthest from the safe area. For passengers in the car, the first step of evacuation is to safely transfer from the car to the outside. This process is mainly affected by personnel parameters and vehicle body structure. Subway trains have the characteristics of strong airtightness, large personnel mobility and large fire load. After a fire occurs, it is easy to form thick smoke and heat waves, and at the same time produce a large amount of toxic gases, which have an adverse effect on the safe evacuation of personnel. If the safe evacuation of personnel in the train cannot be organized quickly and safely, serious safety accidents will usually occur.

[0047] Based on this, an embodiment of the present application provides an evacuation indication system for a subway car to solve the problem of low evacuation efficiency and easy safety accidents when a fire occurs in an existing subway car.

[0048] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of an evacuation indication system for a subway car provided in an embodiment of the present application. Figure 2 The following is a schematic diagram of the operation of a subway car evacuation indication system provided in an embodiment of the present application. Figure 1 As shown in , the evacuation indication system provided by the embodiment of the present application includes: a fire monitoring module 1, a crowd density monitoring module 2, a train central control module 3, and a multi-information joint intelligent evacuation indication module 4. The modules of the evacuation indication system are connected in communication to realize data interaction.

[0049] The fire monitoring module 1 is used to monitor the fire data in each subway car, generate a danger warning signal according to the fire data, and send the danger warning signal to the train central control module 3.

[0050] Here, the fire monitoring module 1 can collect the fire data in each subway car through the sensors set in the subway car. More specifically, the fire monitoring module 1 can include a smoke concentration monitoring unit 101, a temperature monitoring unit 102 and a visibility monitoring unit 103; accordingly, the fire data includes smoke concentration data, temperature data and visibility data.

[0051] like Figure 2As shown in , the sensor is installed next to the door of each subway car and is located at the characteristic height of the human body; the characteristic height of the human body refers to the average height of the people in the subway operation area, which can generally be 1.5m to 1.7m. The fire data obtained in this way can more accurately reflect the impact of the fire on passengers.

[0052] After that. For each subway car, determine whether each type of data in the fire data in the subway car meets the personnel evacuation safety index. Among them, the personnel evacuation safety index can be predetermined based on experimental data or relevant standards. In one example, for smoke concentration data, if the oxygen content is lower than 15%, or the carbon monoxide content is higher than 0.1%, or the hydrogen cyanide concentration is higher than 110fpm, it is determined that it does not meet the personnel evacuation safety index; for temperature data, if the temperature is higher than 60°C, it is determined that it does not meet the personnel evacuation safety index; for visibility data, if the visibility is lower than 10m, it is determined that it does not meet the personnel evacuation safety index.

[0053] If any data does not meet the personnel evacuation safety index, a danger alarm signal for the subway car will be generated. In this way, the dangerous situation of each subway car can be comprehensively determined to ensure the safety of passengers.

[0054] The crowd density monitoring module 2 is used to monitor the crowd density data in each subway car and send the crowd density data to the train central control module 3.

[0055] Here, the crowd density monitoring module 2 may include a real-time crowd density monitoring unit 201 inside the car and a real-time crowd density monitoring unit 202 at the door; the crowd density monitoring module 2 may collect car pictures inside each subway car through a camera installed in each subway car; based on the car pictures, a human body detection algorithm is used to determine the overall crowd density in each subway car and the crowd evacuation speed at the door.

[0056] In one example, the human body detection algorithm can identify human bodies in the carriage image, thereby marking human body detection frames in the carriage image. The number of human body detection frames is the number of passengers in the carriage image. Then, based on the total number of passengers in each subway carriage and the total area of ​​the subway carriage, the overall crowd density in each subway carriage can be determined, in units of per / m2. Based on the number of people passing through the door per unit time, the door crowd evacuation speed in each subway carriage can be determined, in units of per / s. The overall crowd density and door crowd evacuation speed can intuitively reflect the overall crowding and evacuation situation in the subway carriage from the overall carriage and the local evacuation exit, respectively.

[0057] Furthermore, the crowd density monitoring module 2 can also compare the real-time crowd gathering situation with the historical crowd gathering situation (for example, 5 seconds ago), and after analyzing the crowd density algorithm, the real-time size and change pattern of the crowd density here can be obtained. By monitoring the changes in the crowd density at each door and the changes in the crowd density in the car, the crowding situation of each door and the situation of people stranded in the car can be provided in real time.

[0058] The train central control module 3 is used to plan the evacuation strategy of each subway car according to the danger warning signal and the crowd density data, and send the evacuation strategy of each subway car to the multi-information joint intelligent evacuation indication module 4.

[0059] Here, the train central control module 3 analyzes the danger warning signal and crowd density data to determine the safe evacuation door position and the real-time crowd density changes at each door; then, while ensuring the safety of the doors, it guides passengers to low-density doors according to the population density in each subway car to achieve rapid evacuation.

[0060] In specific implementation, the train central control module 3 determines the dangerous subway car with fire hazard based on the danger alarm signal; determines the fire hazard level of the dangerous subway car as high risk, and determines the fire hazard level of the adjacent subway cars of the dangerous subway car as medium risk, and determines the fire hazard level of other subway cars as low risk; and plans the evacuation strategy for each subway car according to the fire hazard level of each subway car.

[0061] Here, medium-risk and low-risk subway cars can be used as subsequent evacuation planning cars, that is, guiding passengers to evacuate from the doors of the car.

[0062] The evacuation strategy includes indicating the fire hazard level of each subway car, guiding passengers in high-risk subway cars to evacuate to other subway cars, reminding passengers in medium-risk subway cars to pay attention to the risk of fire spread, and reminding passengers in low-risk subway cars to stay in their original subway cars.

[0063] In this way, passengers in high-risk subway cars can be guided to evacuate quickly to other safer subway cars to avoid being injured by fire; passengers in medium-risk subway cars can be reminded to pay attention to the risk of fire spread and make preparations for evacuation; passengers in low-risk subway cars can be reminded to stay in their original subway cars to avoid passengers who were originally in a relatively safe position from mistakenly entering dangerous areas due to panic.

[0064] Furthermore, after the subway train arrives at the station, the train central control module 3 controls the doors of the subway cars with a high fire risk level to remain closed, and the doors of other subway cars to open, to prevent passengers from mistakenly entering the fire risk area.

[0065] In a possible implementation, the train central control module 3 can predict the evacuation time of each subway car according to the crowd density data of each subway car. The train central control module 3 can dynamically predict the evacuation time of each subway car according to the overall crowd density and the door crowd evacuation speed received in real time. It should be noted that the study found that the evacuation speed and the total number of people are usually not a simple linear relationship. When the number of people increases, the crowd density in the space will also increase. High density will increase the mutual interference between individuals, thereby reducing the evacuation speed. Therefore, the embodiment of the present application predicts the evacuation time of each subway car according to the overall crowd density and the door crowd evacuation speed, which can achieve a more accurate prediction according to the degree of congestion. Exemplarily, the basic evacuation time can be determined according to the total number of the overall crowd and the door crowd evacuation speed; then the correction coefficient is determined based on the overall crowd density, and the basic evacuation time is corrected by the correction coefficient. Among them, the correction coefficient can be determined based on data such as fire drills and simulation experiments. Finally, the train central control module 3 compares the evacuation time of adjacent subway cars and plans the evacuation strategy for each subway car.

[0066] The evacuation strategy includes guiding passengers in a crowded subway car to evacuate from doors of adjacent subway cars; the crowded subway car refers to a subway car whose evacuation time difference with an adjacent subway car is greater than a preset threshold.

[0067] In another possible implementation, the train central control module 3 can also quickly plan the evacuation strategy for each subway car by comparing the crowd density data of each subway car. It can be expressed as:

[0068]

[0069] In the formula, C i represents the overall crowd density in the ith subway car; Indicates the direction of the personnel path determined by the overall crowd density. 1 means moving in the direction of the train, 0 means staying in the carriage, and -1 means moving in the opposite direction of the train. represents the average door crowd evacuation speed in the i-th carriage; Indicates the direction of the personnel path determined by the crowd evacuation speed at the door. 1 means moving in the direction of the train, 0 means staying in the car, and -1 means moving in the opposite direction of the train.

[0070] According to this method, when the overall crowd density in any subway car is higher than that in the adjacent cars (non-high-risk cars) and / or the crowd evacuation speed at the door is lower than that in the adjacent cars (non-high-risk cars), the passengers in the subway car should be guided to the safe doors with low adjacent crowd density, so as to avoid congestion, shorten the time for all people to leave the subway train, and achieve rapid evacuation.

[0071] In this way, the ultimate guidance goal is to ensure that all personnel leave the subway train quickly. While ensuring the safety of the doors, personnel are guided to low-density doors based on the distribution of personnel in the car. The evacuation strategy can be adjusted in real time through real-time monitoring data of crowd density to prevent congestion.

[0072] The multi-information combined intelligent evacuation indication module 4 is used to transmit the evacuation strategy of each subway car to passengers using multiple information transmission methods.

[0073] In a possible implementation, each subway car includes at least one of the following information indication devices: a display screen 403 (including a platform information display screen and an advertising screen on the top of the door, etc.), a voice broadcast device 402, and an evacuation indicator light 401 (which can be arranged on the side wall of the car and the top of the door); accordingly, the information transmission method of the multi-information joint intelligent evacuation indication module 4 may include:

[0074] Controlling the display screen in each subway car to display the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating;

[0075] and / or, controlling the voice equipment in each subway car to broadcast the fire hazard level, crowd density, and target subway car to which passengers in each subway car should evacuate when evacuating;

[0076] And / or, control the evacuation indicator light set in each subway car to display the light color corresponding to the fire hazard level of the subway car. For example, green is a low-risk fire hazard level, yellow is a medium-risk fire hazard level, and red is a high-risk fire hazard level.

[0077] In another possible implementation, each subway car is installed with multiple wireless communication tags, such as NFC tags and RFID tags, etc. The wireless communication tags can be installed at multiple locations in each subway car, such as handrails and doors.

[0078] Accordingly, the information transmission mode of the multi-information joint intelligent evacuation indication module 4 may also include:

[0079] The evacuation strategy of each subway car is published to the target page in the server, so that passengers can read any wireless communication tag through a mobile terminal to obtain the serial number and publishing address of the local subway car, use the mobile terminal to access the target page according to the publishing address, and pass the serial number of the local subway car to the target page to obtain the evacuation strategy corresponding to the local subway car.

[0080] Here, the wireless communication tag pre-stores the access address of the target page and the serial number of the subway car where the wireless communication tag is located.

[0081] After monitoring the occurrence of a fire and planning an evacuation strategy, the multi-information joint intelligent evacuation instruction module 4 publishes the received evacuation strategy for each subway car to a target page in the server.

[0082] At this time, the terminal device held by the passenger (including mobile phones, smart watches, PDAs, etc.) acts as a reader. After approaching the wireless communication tag, it can read the access address of the target page and the serial number of the subway car pre-stored in the wireless communication tag.

[0083] Afterwards, the terminal device accesses the target page according to the published address, and transmits the obtained serial number of the local subway car to the target page, so that the evacuation strategy corresponding to the local subway car can be quickly and accurately located from all evacuation strategies.

[0084] In this way, in scenarios where it is inconvenient to obtain information from the information indicator devices in subway cars due to crowded subways and low visibility, passengers can easily locate their own car through their own terminal devices and obtain the corresponding evacuation strategy for the subway car, which helps to achieve safe and rapid evacuation. In addition, the method of obtaining evacuation strategies through wireless communication tags does not require users to pre-install specific applications and then receive information through specific applications; instead, it uses the inherent wireless communication function of the terminal device itself, which has a wide range of applications in emergency situations.

[0085] In an example, see Figure 3 , Figure 3 This is a working principle diagram of a subway car evacuation indication system provided in an embodiment of the present application. Figure 3 As shown in, when a fire occurs in a certain carriage, the fire monitoring module 1 uploads the fire monitoring data to the train central control module 3, and the train central control module 3 simultaneously divides the safety level of each carriage and screens out the evacuation planning carriage; when any monitoring data of the smoke concentration monitoring unit 101, the temperature monitoring unit 102, and the visibility monitoring unit 103 exceeds the evacuation safety index, it is fed back to the train central control module 3, and the train central control module 3 closes the door here and adjusts the fire hazard level of this carriage to high.

[0086] The multi-information joint intelligent evacuation indication module 4 adjusts the evacuation indicator light 401 of this carriage to red, and reminds people not to enter the fire risk area through voice broadcast 402; if the danger level of the adjacent carriage is medium, the evacuation indicator light is adjusted to yellow, and the voice broadcast 402 reminds people that there is a risk of fire spreading in this carriage. During the evacuation process, the crowd density monitoring module 2 monitors the crowd density and density changes in the carriage and each door in real time, and feeds back to the train central control module 3. Within the planned carriage range, the congestion value of the adjacent carriage is compared, and the evacuation strategy of the current carriage is planned.

[0087] The multi-information joint intelligent evacuation indication module 4 controls the evacuation information display screen 403 to display the safety and population density distribution of each carriage in real time. When the population density of the current carriage is lower than that of the adjacent carriage, the train central control module 3 instructs the passengers to stay in the current carriage through the evacuation information display screen 403. When the population density of the current carriage is higher than that of the adjacent carriage, the evacuation information display screen 403 instructs the passengers to evacuate to the adjacent low-density carriage; the evacuation strategy is adjusted through the real-time monitoring data of the crowd density to prevent congestion.

[0088] After the subway stops at a station, during the process of people evacuating to the platform, the crowd density monitoring module 2 will monitor the crowd density in the car and the crowd density at the door in real time, and feed back the data to the train central control module 3, and guide the crowd to evacuate to the platform according to the crowd density distribution in the train: the crowd density distribution in the car is displayed through the evacuation information display screen 403, guiding the crowd to evacuate to the car with low crowd density.

[0089] The train central control module 3 determines whether there are people stranded in the train based on the real-time data fed back by the crowd density monitoring module 2, and if so, opens the corresponding car door for rescue.

[0090] The embodiment of the present application provides an evacuation indication system for a subway car. The train central control module plans the evacuation strategy for each subway car according to the fire-related danger warning signal and the crowd density in the subway car, and the multi-information joint intelligent evacuation indication module uses multiple information transmission methods to provide guidance. In this way, real-time evacuation route guidance can be provided to passengers, effectively preventing passengers from mistakenly entering dangerous areas where fire smoke spreads and crowded subway cars, thereby improving evacuation efficiency and evacuation safety.

[0091] See also Figure 4 , Figure 4 A flowchart of a subway car evacuation indication method provided in an embodiment of the present application. The evacuation indication method is applied to a subway car evacuation indication system as described above; the system includes: a fire monitoring module, a crowd density monitoring module, a train central control module, and a multi-information joint intelligent evacuation indication module. Figure 4 As shown in , the evacuation indication method includes:

[0092] S401, the fire monitoring module monitors the fire data in each subway car, generates a danger warning signal according to the fire data, and sends the danger warning signal to the train central control module;

[0093] S402, the crowd density monitoring module monitors the crowd density in each subway car and sends the crowd density to the train central control module;

[0094] S403, the train central control module plans an evacuation strategy for each subway car according to the danger warning signal and the crowd density, and sends the evacuation strategy for each subway car to the multi-information joint intelligent evacuation indication module;

[0095] S404. The multi-information joint intelligent evacuation instruction module uses multiple information transmission methods to transmit the evacuation strategy of each subway car to passengers.

[0096] Furthermore, the fire monitoring module monitors the fire data in each subway car and generates an alarm signal according to the fire data, including:

[0097] The fire data in each subway car is collected by sensors installed in the subway car; wherein the fire data includes smoke concentration data, temperature data and visibility data; the sensors are installed beside the doors of each subway car and are located at a characteristic height of the human body;

[0098] For each subway car, determining whether each type of data in the fire data in the subway car meets the personnel evacuation safety index;

[0099] If any of the data does not meet the safety index for evacuation of personnel, a danger alarm signal for the subway car will be generated.

[0100] Furthermore, the crowd density monitoring module monitors the crowd density data in each subway car, including:

[0101] The camera installed in each subway car collects the pictures in each subway car;

[0102] Based on the carriage images, a human body detection algorithm is used to determine the overall crowd density in each subway carriage and the crowd evacuation speed at the doors.

[0103] Furthermore, the train central control module plans an evacuation strategy for each subway car according to the danger warning signal and the crowd density data, including:

[0104] Determining a dangerous subway car with a fire hazard according to the danger warning signal;

[0105] The fire hazard level of the dangerous subway car is determined as high hazard, the fire hazard level of the adjacent subway cars of the dangerous subway car is determined as medium hazard, and the fire hazard level of other subway cars is determined as low hazard;

[0106] According to the fire hazard level of each subway car, an evacuation strategy for each subway car is planned; wherein the evacuation strategy includes indicating the fire hazard level of each subway car, guiding passengers in high-risk subway cars to evacuate to other subway cars, reminding passengers in medium-risk subway cars to pay attention to the risk of fire spread, and reminding passengers in low-risk subway cars to stay in their original subway cars.

[0107] Furthermore, the train central control module plans an evacuation strategy for each subway car according to the danger warning signal and the crowd density data, including:

[0108] After the subway train arrives at the station, the doors of subway cars with high fire risk level are kept closed, and the doors of other subway cars are opened;

[0109] Based on the crowd density data of each subway car, predict the evacuation time of each subway car;

[0110] Compare the evacuation times of adjacent subway cars and plan an evacuation strategy for each subway car; wherein the evacuation strategy includes guiding passengers in a crowded subway car to evacuate from doors of adjacent subway cars; the crowded subway car refers to a subway car whose evacuation time difference with an adjacent subway car is greater than a preset threshold.

[0111] Furthermore, the multi-information joint intelligent evacuation indication module uses multiple information transmission methods to transmit the evacuation strategy of each subway car to passengers, including:

[0112] Controlling the display screen in each subway car to display the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating;

[0113] Controlling the voice equipment in each subway car to broadcast the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating;

[0114] The evacuation indicator lights installed in each subway car are controlled to display the light color corresponding to the fire hazard level of the subway car.

[0115] Furthermore, each subway car is equipped with multiple wireless communication tags; the multi-information joint intelligent evacuation indication module uses multiple information transmission methods to transmit the evacuation strategy of each subway car to passengers, including:

[0116] The evacuation strategy of each subway car is published to the target page in the server, so that passengers can read any wireless communication tag through a mobile terminal to obtain the serial number and publishing address of the local subway car, use the mobile terminal to access the target page according to the publishing address, and pass the serial number of the local subway car to the target page to obtain the evacuation strategy corresponding to the local subway car.

[0117] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 5 As shown in , the electronic device 500 includes a processor 510 , a memory 520 and a bus 530 .

[0118] The memory 520 stores machine-readable instructions executable by the processor 510. When the electronic device 500 is running, the processor 510 communicates with the memory 520 via the bus 530. When the machine-readable instructions are executed by the processor 510, the above-mentioned Figure 4 The specific implementation of the steps of the subway car evacuation indication method in the method embodiment shown can be found in the method embodiment, which will not be repeated here.

[0119] The present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the computer program can execute the above-mentioned Figure 4 The specific implementation of the steps of the subway car evacuation indication method in the method embodiment shown can be found in the method embodiment, which will not be repeated here.

[0120] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0121] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0122] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0123] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0124] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application can essentially be embodied in the form of a software product, or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0125] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An evacuation indication system for a subway car, characterized in that: The system includes: a fire monitoring module, a crowd density monitoring module, a train central control module, and a multi-information joint intelligent evacuation indication module; The fire monitoring module is used to monitor the fire data in each subway car, generate a danger warning signal according to the fire data, and send the danger warning signal to the train central control module; The crowd density monitoring module is used to monitor the crowd density data in each subway car and send the crowd density data to the train central control module; The train central control module is used to plan the evacuation strategy of each subway car according to the danger warning signal and the crowd density data, and send the evacuation strategy of each subway car to the multi-information joint intelligent evacuation indication module; The multi-information joint intelligent evacuation indication module is used to convey the evacuation strategy of each subway car to passengers using multiple information transmission methods.

2. The system according to claim 1, characterized in that When the fire monitoring module is used to monitor the fire data in each subway car and generate an alarm signal according to the fire data, the fire monitoring module is used to: The fire data in each subway car is collected by sensors installed in the subway car; wherein the fire data includes smoke concentration data, temperature data and visibility data; the sensors are installed beside the doors of each subway car and are located at a characteristic height of the human body; For each subway car, determining whether each type of data in the fire data in the subway car meets the personnel evacuation safety index; If any of the data does not meet the safety index for evacuation of personnel, a danger alarm signal for the subway car will be generated.

3. The system according to claim 1, characterized in that When the crowd density monitoring module is used to monitor the crowd density data in each subway car, the crowd density monitoring module is used to: The camera installed in each subway car collects the pictures in each subway car; Based on the carriage images, a human body detection algorithm is used to determine the overall crowd density in each subway carriage and the crowd evacuation speed at the doors.

4. The system according to claim 1, characterized in that When the train central control module is used to plan the evacuation strategy for each subway car according to the danger warning signal and the crowd density data, the train central control module is used to: Determining a dangerous subway car with a fire hazard according to the danger warning signal; The fire hazard level of the dangerous subway car is determined as high hazard, the fire hazard level of the adjacent subway cars of the dangerous subway car is determined as medium hazard, and the fire hazard level of other subway cars is determined as low hazard; According to the fire hazard level of each subway car, an evacuation strategy for each subway car is planned; wherein the evacuation strategy includes indicating the fire hazard level of each subway car, guiding passengers in high-risk subway cars to evacuate to other subway cars, reminding passengers in medium-risk subway cars to pay attention to the risk of fire spread, and reminding passengers in low-risk subway cars to stay in their original subway cars.

5. The system according to claim 4, characterized in that When the train central control module is used to plan an evacuation strategy for each subway car according to the danger warning signal and the crowd density data, the train central control module is also used to: After the subway train arrives at the station, the doors of subway cars with high fire risk level are kept closed, and the doors of other subway cars are opened; Based on the crowd density data of each subway car, predict the evacuation time of each subway car; Compare the evacuation times of adjacent subway cars and plan an evacuation strategy for each subway car; wherein the evacuation strategy includes guiding passengers in a crowded subway car to evacuate from doors of adjacent subway cars; the crowded subway car refers to a subway car whose evacuation time difference with an adjacent subway car is greater than a preset threshold.

6. The system according to claim 4, characterized in that When the multi-information joint intelligent evacuation instruction module is used to transmit the evacuation strategy of each subway car to passengers using multiple information transmission methods, the multi-information joint intelligent evacuation instruction module is used to: Controlling the display screen in each subway car to display the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating; Controlling the voice equipment in each subway car to broadcast the fire hazard level of each subway car in the subway train, the crowd density, and the target subway car to which the passengers in each subway car should go when evacuating; The evacuation indicator lights installed in each subway car are controlled to display the light color corresponding to the fire hazard level of the subway car.

7. The system according to claim 1, characterized in that Each subway car is equipped with a plurality of wireless communication tags; when the multi-information joint intelligent evacuation indication module is used to transmit the evacuation strategy of each subway car to passengers using a plurality of information transmission methods, the multi-information joint intelligent evacuation indication module is also used to: The evacuation strategy of each subway car is published to the target page in the server, so that passengers can read any wireless communication tag through a mobile terminal to obtain the serial number and publishing address of the local subway car, use the mobile terminal to access the target page according to the publishing address, and pass the serial number of the local subway car to the target page to obtain the evacuation strategy corresponding to the local subway car.

8. A subway car evacuation indication method, characterized in that: The method is applied to an evacuation indication system for a subway car as claimed in any one of claims 1 to 7; the system comprises: a fire monitoring module, a crowd density monitoring module, a train central control module, and a multi-information joint intelligent evacuation indication module; the method comprises: The fire monitoring module monitors the fire data in each subway car, generates a danger warning signal according to the fire data, and sends the danger warning signal to the train central control module; The crowd density monitoring module monitors the crowd density in each subway car and sends the crowd density to the train central control module; The train central control module plans an evacuation strategy for each subway car according to the danger warning signal and the crowd density, and sends the evacuation strategy for each subway car to the multi-information joint intelligent evacuation indication module; The multi-information joint intelligent evacuation indication module uses multiple information transmission methods to transmit the evacuation strategy of each subway car to passengers.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and the machine-readable instructions are executed by the processor to execute the steps of the subway car evacuation indication method as claimed in claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the subway car evacuation indication method as claimed in claim 8 are executed.

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