Urban rail transit disaster prevention multi-line evacuation system

Abstract

The invention discloses a disaster prevention multi-line evacuation system for urban rail transit. The disaster prevention multi-line evacuation system comprises a fire data acquisition module, a fire map drawing module, a fire spreading analysis module, a passenger data acquisition module, a passenger evacuation analysis module and a passenger evacuation execution module. Wherein the fire data acquisition module, the fire map drawing module and the fire spreading analysis module are used for detecting fire, the passenger data acquisition module is used for obtaining conditions of passengers at a station, and the passenger evacuation analysis module and the passenger evacuation execution module are used for completing evacuation work for the passengers. The change condition of the fire behavior is detected through the temperature sensor, the position condition of the passengers is collected by combining the camera, the spreading condition and direction of the fire behavior are automatically analyzed, the distribution condition of the passengers is integrated, and unified evacuation is carried out on the passengers at the station, so that evacuation is carried out in combination with the real-time condition and is real and effective; therefore, the passengers can be away from the fire and rapidly evacuate from the fire site, and the travel safety of the passengers is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of urban rail transit, and in particular to an urban rail transit disaster prevention multi-line evacuation system. Background Art

[0002] Chongqing Rail Transit Line 18 North Extension Project starts from Xiaoshizi Station in the east, passes through Huguang Guild Hall, Kaixuan Road, Shibati, Qixinggang, Chongqing Station, Huangshaxi, Shidai Tianjie, and ends at Fuhua Road Station (not included) in the first phase of the project in the west. The total length of the line is 10.61km, with a total of 8 stations, all of which are underground stations. The maximum station spacing is 1.971km (Chongqing Station-Caiyuan Road Station), the minimum station spacing is 0.711km (Caiyuan Road Station-Huangshaxi Station), and the average station spacing is 1.248km. There are 3 transfer stations, Xiaoshizi Station transfers with Lines 1 and 6, Qixinggang Station transfers with Lines 1 and 10, and Chongqing Station transfers with Lines 26 and 27. The line is located in Yuzhong District, Chongqing, and some stations are popular spots in the city. The daily passenger delivery volume is large. Therefore, how to ensure the safety of passengers is the top priority of urban rail transit construction and operation.

[0003] When it comes to safety precautions for urban rail transit, fire prevention is top priority. For this reason, most urban rail transit systems are equipped with an automatic fire alarm system (FAS) during construction. The automatic fire alarm system can quickly and accurately obtain the location of the fire and initiate a series of emergency measures to prevent the spread of the fire, so as to extinguish the fire as quickly as possible and prevent the fire from spreading to other stations and causing greater casualties.

[0004] However, for stations where fire occurs, the evacuation of passengers is currently still dependent on manual labor. However, this method requires someone to always understand the fire situation, make accurate judgments, and conduct unified dispatch and command of passengers. Otherwise, it is very easy to cause casualties. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an urban rail transit disaster prevention multi-line evacuation system in view of the deficiencies in the above-mentioned prior art, which automatically analyzes the spread and direction of the fire and uniformly guides the passengers in the station so that the passengers can stay away from the fire and quickly evacuate the fire station, thereby ensuring the travel safety of the passengers.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an urban rail transit disaster prevention multi-line evacuation system, comprising:

[0007] The fire data acquisition module monitors the temperature value of the station at each time through temperature sensors installed at various locations in the urban rail transit station, and analyzes the fire temperature at each time and the location corresponding to the fire temperature;

[0008] The fire map drawing module obtains the fire temperature at a set time and the position corresponding to the fire temperature from the fire data acquisition module, and draws the fire map at the set time according to the fire temperature at the set time and the position corresponding to the fire temperature;

[0009] The fire spread analysis module obtains two adjacent set moments, obtains the fire map at the two adjacent set moments through the fire map drawing module, and determines the location of the fire and the direction and speed of the fire spread;

[0010] The passenger data collection module obtains passenger images in various areas of the station through various cameras installed in the urban rail transit station, and obtains the distribution of passengers in various areas of the station;

[0011] The passenger diversion analysis module establishes a three-dimensional coordinate system for urban rail transit stations, and determines the diversion direction and diversion speed of passengers in each area based on the fire location, fire spread direction and speed obtained by the fire spread analysis module and the distribution of passengers obtained by the passenger data collection module;

[0012] The passenger diversion execution module controls the execution unit to execute according to the diversion direction and diversion speed of passengers in various areas of the urban rail transit station obtained by the passenger diversion analysis module.

[0013] Furthermore, in the fire data acquisition module, the analysis to obtain the fire temperature at each moment and the position corresponding to the fire temperature includes the following steps:

[0014] Compare the fire temperature at each moment with the set temperature value;

[0015] Screen out fire temperatures higher than the set temperature value, and remove fire temperatures not higher than the set temperature value;

[0016] Output the filtered fire temperatures at each moment and the corresponding positions of the fire temperatures.

[0017] Furthermore, in the fire spread analysis module, the fire maps at two adjacent set moments are obtained by the fire map drawing module to determine the location of the fire and the direction and speed of the fire spread, including the following steps:

[0018] Establishing a three-dimensional coordinate system of the urban rail transit station, and using the three-dimensional coordinate system to represent the two fire maps;

[0019] Obtaining the coordinate points of the highest fire temperature in the two fire maps respectively to determine the location of the fire;

[0020] The two coordinate points are connected using a vector according to the detection time, and the direction and speed of fire spread are obtained.

[0021] Furthermore, the step of respectively obtaining the coordinate points of the highest fire temperature in the two fire maps to determine the location of the fire includes:

[0022] respectively obtaining the coordinate points of the highest fire temperatures in the two fire maps;

[0023] Calculate the midpoint of the two coordinate points, and output the midpoint of the two coordinate points as the location of the fire.

[0024] Furthermore, in the passenger data collection module, the distribution of passengers in each area of ​​the station is obtained, including:

[0025] Extract the number of passengers and the positions of passengers in the passenger images of each area respectively;

[0026] The number of passengers and the location of the passengers are output as the distribution of the passengers.

[0027] Furthermore, extracting the number of passengers and the positions of passengers in the passenger images of each area includes:

[0028] Using human face extraction technology to extract facial images of each passenger in the passenger image;

[0029] Count the number of facial images to get the number of passengers;

[0030] A three-dimensional coordinate system of the urban rail transit station is established, and each facial image is mapped into the three-dimensional coordinate system of the urban rail transit station to obtain the passenger position.

[0031] Furthermore, the passenger evacuation analysis module determines the evacuation direction and evacuation speed of passengers in each area according to the fire location, the direction and speed of fire spread obtained by the fire spread analysis module and the distribution of passengers obtained by the passenger data collection module, including:

[0032] Map the location of the fire and the direction and speed of fire spread into the three-dimensional coordinate system of the urban rail transit station;

[0033] Mapping the number of passengers and the positions of passengers into a three-dimensional coordinate system of an urban rail transit station, wherein the distribution of passengers includes the number of passengers and the positions of passengers;

[0034] The fire location is combined with the direction of fire spread to draw the fire range at a future set time in a three-dimensional coordinate system;

[0035] According to the direction of fire spread, determine the evacuation direction of passengers in each area within the set range around the fire range;

[0036] According to the speed of fire spread, the evacuation speed of passengers in each area within a set range around the fire range is determined.

[0037] Furthermore, the method of determining the evacuation direction of passengers in each area within a set range around the fire range according to the direction of fire spread includes:

[0038] Establish the direction of fire spread in a three-dimensional coordinate system;

[0039] The direction of each area on the horizontal plane and the direction of the fire spread are obtained to determine the evacuation direction of passengers in each area within a set range around the fire range, and the evacuation direction of the passengers is different from the direction of the fire spread.

[0040] Compared with the prior art, the present invention has the following advantages:

[0041] The present invention provides a multi-line evacuation system for urban rail transit disaster prevention. The system detects changes in the fire through a temperature sensor, combines the position of passengers captured by a camera, automatically analyzes the spread and direction of the fire, collects the distribution of passengers, and uniformly guides passengers at the station. Since the fire data is collected in the first time and automatically analyzed based on the data, the guidance made is combined with the real-time situation and is real and effective, so that passengers can stay away from the fire and quickly evacuate the fire station, ensuring the travel safety of passengers.

[0042] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the overall structure of an urban rail transit disaster prevention multi-line evacuation system provided by the present invention. DETAILED DESCRIPTION

[0044] like Figure 1 As shown, the present invention provides an urban rail transit disaster prevention multi-line evacuation system, comprising:

[0045] The fire data acquisition module monitors the temperature value of the station at each time through temperature sensors installed at various locations in the urban rail transit station, and analyzes the fire temperature at each time and the location corresponding to the fire temperature;

[0046] The fire map drawing module obtains the fire temperature at a set time and the position corresponding to the fire temperature from the fire data acquisition module, and draws the fire map at the set time according to the fire temperature at the set time and the position corresponding to the fire temperature;

[0047] The fire spread analysis module obtains two adjacent set moments, obtains the fire map at the two adjacent set moments through the fire map drawing module, and determines the location of the fire and the direction and speed of the fire spread;

[0048] The passenger data collection module obtains passenger images in various areas of the station through various cameras installed in the urban rail transit station, and obtains the distribution of passengers in various areas of the station;

[0049] The passenger diversion analysis module establishes a three-dimensional coordinate system for urban rail transit stations, and determines the diversion direction and diversion speed of passengers in each area based on the fire location, fire spread direction and speed obtained by the fire spread analysis module and the distribution of passengers obtained by the passenger data collection module;

[0050] The passenger diversion execution module controls the execution unit to execute according to the diversion direction and diversion speed of passengers in various areas of the urban rail transit station obtained by the passenger diversion analysis module.

[0051] The above modules coordinate and cooperate with each other. After the fire alarm is triggered, the present invention immediately takes corresponding measures, detects the changes in the fire through the temperature sensor, and automatically analyzes the spread and direction of the fire in combination with the position of the passengers captured by the camera. The distribution of the passengers is collected and the passengers in the station are uniformly guided. Since the fire data is collected in the first time and automatically analyzed according to the shaft, the guidance made is combined with the real-time situation and is real and effective, so that passengers can stay away from the fire and quickly evacuate the fire station to ensure the safety of passengers.

[0052] In the present invention, in the fire data acquisition module, the analysis to obtain the fire temperature at each moment and the position corresponding to the fire temperature includes the following steps:

[0053] Compare the fire temperature at each moment with the set temperature value;

[0054] Screen out fire temperatures higher than the set temperature value, and remove fire temperatures not higher than the set temperature value;

[0055] Output the filtered fire temperatures at each moment and the corresponding positions of the fire temperatures.

[0056] Temperature sensors are commonly used electronic components installed in urban rail transit stations. They are used to monitor the temperature of the stations on a daily basis, ventilate the stations, and adjust the temperature of the stations to an appropriate temperature to increase the comfort of passengers in the stations.

[0057] In the present invention, the function of the temperature sensor is diverted to perform special work in special circumstances. In order to distinguish the area at the fire scene from the area that has not yet caught fire, the present invention distinguishes the temperature detected by the temperature sensor and determines the location of the fire from a global perspective. In this way, the location near the fire source can be quickly located and tourists can be evacuated. No other special equipment is required, and only the original temperature sensor can be relied upon. The cost of site construction will not be greatly increased during construction.

[0058] In the present invention, the fire map is drawn based on the results of the temperature sensor data processing to reflect the location of the fire source.

[0059] In the present invention, in the fire spread analysis module, the fire maps at two adjacent set moments are obtained by the fire map drawing module to determine the location of the fire and the direction and speed of the fire spread, including the following steps:

[0060] Establishing a three-dimensional coordinate system of the urban rail transit station, and using the three-dimensional coordinate system to represent the two fire maps;

[0061] Obtaining the coordinate points of the highest fire temperature in the two fire maps respectively to determine the location of the fire;

[0062] The two coordinate points are connected using a vector according to the detection time, and the direction and speed of fire spread are obtained.

[0063] The present invention uses a three-dimensional coordinate system to judge the location of the fire and the direction and speed of the fire spread from the perspective of data. The location of the fire is the location of the temperature sensor with the highest temperature, that is, the location of the fire source, which is a point data. The direction and speed of the fire spread are determined based on the location of the fire source at two adjacent moments, generally the current moment and the previous moment. The two point data form a vector, and the direction of the vector is the direction of the fire spread. The two point data are combined with the time interval of the two adjacent moments to calculate the speed, which is the speed of the fire spread. That is, the coordinate points of the highest fire temperature in the two fire maps are obtained respectively to determine the location of the fire, including:

[0064] respectively obtaining the coordinate points of the highest fire temperatures in the two fire maps;

[0065] Calculate the midpoint of the two coordinate points, and output the midpoint of the two coordinate points as the location of the fire.

[0066] In the present invention, the passenger data collection module obtains the distribution of passengers in each area of ​​the station, including:

[0067] Extract the number of passengers and the positions of passengers in the passenger images of each area respectively;

[0068] The number of passengers and the location of the passengers are output as the distribution of the passengers.

[0069] Each area in the urban rail transit station is pre-set and divided, and each area is monitored by a camera. The camera can be used to monitor the situation of the station and observe each area of ​​the station. In the present invention, the passenger image is the current moment. The number of passengers and the position of passengers are obtained by processing the passenger image. By using image processing, the passenger head image can be easily extracted to determine the number of passengers and the position of passengers. In the present invention, the distribution of passengers is the number of passengers and the position of passengers. That is, the number of passengers and the position of passengers in the passenger image of each area are extracted, including:

[0070] Using human face extraction technology to extract facial images of each passenger in the passenger image;

[0071] Count the number of facial images to get the number of passengers;

[0072] A three-dimensional coordinate system of the urban rail transit station is established, and each facial image is mapped into the three-dimensional coordinate system of the urban rail transit station to obtain the passenger position.

[0073] In the present invention, the human face extraction technology does not need to be accurate to the facial features of the human face, but only needs to extract the corresponding passenger face according to the outline of the person's head, and then quantify the number of passengers.

[0074] In the present invention, the passenger evacuation analysis module determines the evacuation direction and evacuation speed of passengers in each area according to the fire location, the direction and speed of fire spread obtained by the fire spread analysis module and the distribution of passengers obtained by the passenger data collection module, including:

[0075] Map the location of the fire and the direction and speed of fire spread into the three-dimensional coordinate system of the urban rail transit station;

[0076] Mapping the number of passengers and the positions of passengers into a three-dimensional coordinate system of an urban rail transit station, wherein the distribution of passengers includes the number of passengers and the positions of passengers;

[0077] The fire location is combined with the direction of fire spread to draw the fire range at a future set time in a three-dimensional coordinate system;

[0078] According to the direction of fire spread, determine the evacuation direction of passengers in each area within the set range around the fire range;

[0079] According to the speed of fire spread, the evacuation speed of passengers in each area within a set range around the fire range is determined.

[0080] The present invention uses a three-dimensional coordinate system to guide passengers by combining vectors and fire ranges, wherein the fire range is the fire range automatically determined by the present invention after the fire spreads, and the fire range is not suitable for passengers to stay. When guiding passengers, passengers are prevented from evacuating along the direction of the fire spread, thereby keeping passengers away from the fire source to the greatest extent possible. The evacuation direction of passengers in each area within a set range around the fire range is determined according to the direction of the fire spread, including:

[0081] Establish the direction of fire spread in a three-dimensional coordinate system;

[0082] The direction of each area on the horizontal plane and the direction of the fire spread are obtained to determine the evacuation direction of passengers in each area within a set range around the fire range, and the evacuation direction of the passengers is different from the direction of the fire spread.

[0083] The passenger guidance execution module of the present invention controls the execution of the execution unit according to the guidance direction and guidance speed of passengers in various areas of the urban rail transit station obtained by the passenger guidance analysis module. The execution unit can be a road sign indicator on the ground, an indicator sign on the wall, or an intercom for the station staff. Through a combination of manual and machine methods, the passengers at the station are quickly guided so that the passengers can stay away from the fire and quickly evacuate the fire station to ensure the travel safety of the passengers.

[0084] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An urban rail transit disaster prevention multi-line evacuation system, characterized in that: include: The fire data acquisition module monitors the temperature value of the station at each time through temperature sensors installed at various locations in the urban rail transit station, and analyzes the fire temperature at each time and the location corresponding to the fire temperature; The fire map drawing module obtains the fire temperature at a set time and the position corresponding to the fire temperature from the fire data acquisition module, and draws the fire map at the set time according to the fire temperature at the set time and the position corresponding to the fire temperature; The fire spread analysis module obtains two adjacent set moments, obtains the fire map at the two adjacent set moments through the fire map drawing module, and determines the location of the fire and the direction and speed of the fire spread; The passenger data collection module obtains passenger images in various areas of the station through various cameras installed in the urban rail transit station, and obtains the distribution of passengers in various areas of the station; The passenger diversion analysis module establishes a three-dimensional coordinate system for urban rail transit stations, and determines the diversion direction and diversion speed of passengers in each area based on the fire location, fire spread direction and speed obtained by the fire spread analysis module and the distribution of passengers obtained by the passenger data collection module; The passenger diversion execution module controls the execution unit to execute according to the diversion direction and diversion speed of passengers in various areas of the urban rail transit station obtained by the passenger diversion analysis module.

2. The urban rail transit disaster prevention multi-line evacuation system according to claim 1, characterized in that: In the fire data acquisition module, the analysis to obtain the fire temperature at each moment and the position corresponding to the fire temperature includes the following steps: Compare the fire temperature at each moment with the set temperature value; Screen out fire temperatures higher than the set temperature value, and remove fire temperatures not higher than the set temperature value; Output the filtered fire temperatures at each moment and the corresponding positions of the fire temperatures.

3. The urban rail transit disaster prevention multi-line evacuation system according to claim 1, characterized in that: In the fire spread analysis module, the fire maps at two adjacent set moments are obtained by the fire map drawing module to determine the location of the fire and the direction and speed of the fire spread, including the following steps: Establishing a three-dimensional coordinate system of the urban rail transit station, and using the three-dimensional coordinate system to represent the two fire maps; Obtaining the coordinate points of the highest fire temperature in the two fire maps respectively to determine the location of the fire; The two coordinate points are connected using a vector according to the detection time, and the direction and speed of fire spread are obtained.

4. The urban rail transit disaster prevention multi-line evacuation system according to claim 3, characterized in that: The step of respectively obtaining the coordinate points of the highest fire temperature in the two fire maps to determine the location of the fire includes: respectively obtaining the coordinate points of the highest fire temperatures in the two fire maps; Calculate the midpoint of the two coordinate points, and output the midpoint of the two coordinate points as the location of the fire.

5. The urban rail transit disaster prevention multi-line evacuation system according to claim 1, characterized in that: In the passenger data collection module, the distribution of passengers in each area of ​​the station is obtained, including: Extract the number of passengers and the positions of passengers in the passenger images of each area respectively; The number of passengers and the location of the passengers are output as the distribution of the passengers.

6. The urban rail transit disaster prevention multi-line evacuation system according to claim 5, characterized in that: The extracting the number of passengers and the positions of passengers in the passenger images of each area includes: Using human face extraction technology to extract facial images of each passenger in the passenger image; Count the number of facial images to get the number of passengers; A three-dimensional coordinate system of the urban rail transit station is established, and each facial image is mapped into the three-dimensional coordinate system of the urban rail transit station to obtain the passenger position.

7. The urban rail transit disaster prevention multi-line evacuation system according to claim 1, characterized in that: The passenger evacuation analysis module determines the evacuation direction and evacuation speed of passengers in each area according to the fire location, the direction and speed of fire spread obtained by the fire spread analysis module and the distribution of passengers obtained by the passenger data collection module, including: Map the location of the fire and the direction and speed of fire spread into the three-dimensional coordinate system of the urban rail transit station; Mapping the number of passengers and the positions of passengers into a three-dimensional coordinate system of an urban rail transit station, wherein the distribution of passengers includes the number of passengers and the positions of passengers; The fire location is combined with the direction of fire spread to draw the fire range at a future set time in a three-dimensional coordinate system; According to the direction of fire spread, determine the evacuation direction of passengers in each area within the set range around the fire range; According to the speed of fire spread, the evacuation speed of passengers in each area within a set range around the fire range is determined.

8. The urban rail transit disaster prevention multi-line evacuation system according to claim 7, characterized in that: Determining the evacuation direction of passengers in each area within a set range around the fire range according to the direction of fire spread includes: Establish the direction of fire spread in a three-dimensional coordinate system; The direction of each area on the horizontal plane and the direction of the fire spread are obtained to determine the evacuation direction of passengers in each area within a set range around the fire range, and the evacuation direction of the passengers is different from the direction of the fire spread.

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