CN116108656A - Vehicle layout simulation method and system in highway tunnel - Google Patents

Vehicle layout simulation method and system in highway tunnel Download PDF

Info

Publication number
CN116108656A
CN116108656A CN202310057838.3A CN202310057838A CN116108656A CN 116108656 A CN116108656 A CN 116108656A CN 202310057838 A CN202310057838 A CN 202310057838A CN 116108656 A CN116108656 A CN 116108656A
Authority
CN
China
Prior art keywords
vehicle
lane
parameters
vehicles
tunnel
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
CN202310057838.3A
Other languages
Chinese (zh)
Inventor
刘顶立
颜龙
徐志胜
李颖
黄遥
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.)
Central South University
Changsha University of Science and Technology
Original Assignee
Central South University
Changsha University of Science and Technology
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 Central South University, Changsha University of Science and Technology filed Critical Central South University
Priority to CN202310057838.3A priority Critical patent/CN116108656A/en
Publication of CN116108656A publication Critical patent/CN116108656A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/20—Design optimisation, verification or simulation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/26—Government or public services
    • G06Q50/265—Personal security, identity or safety
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2111/00—Details relating to CAD techniques
    • G06F2111/10—Numerical modelling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/15—Vehicle, aircraft or watercraft design

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Tourism & Hospitality (AREA)
  • Development Economics (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Geometry (AREA)
  • Evolutionary Computation (AREA)
  • Educational Administration (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Economics (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Resources & Organizations (AREA)
  • Marketing (AREA)
  • Primary Health Care (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Alarm Systems (AREA)

Abstract

The invention discloses a vehicle layout simulation method and system in a highway tunnel, wherein the method comprises the following steps: setting vehicle type parameters, personnel type parameters, road tunnel space parameters and lane parameters; obtaining the ratio of the number of corresponding vehicles in the corresponding lanes to the total number of all vehicles according to the space parameters of the highway tunnel, the parameters of each vehicle type and the lane parameters; obtaining the number of vehicles in the corresponding lanes according to the space parameters of the highway tunnel, the parameters of each vehicle type and the ratio of the number of the corresponding vehicle types in the corresponding lanes to the total number of all the vehicle types; obtaining the number of corresponding vehicle types in the corresponding lanes according to the ratio of the number of vehicles in each lane to the number of corresponding vehicle types in the corresponding lanes to the total number of all vehicle types; the vehicles of each lane are arranged randomly to obtain a corresponding arrangement set; and obtaining the positions of all the vehicles in each lane according to the set of the vehicle arrangement of each lane and the average vehicle distance of each lane. The invention aims to improve the modeling efficiency and the accuracy of the simulation result of the highway tunnel fire simulation and evacuation simulation model.

Description

Vehicle layout simulation method and system in highway tunnel
Technical Field
The invention relates to the field of evacuation simulation, in particular to a simulation method and a system for vehicle layout in a highway tunnel.
Background
With the increase of the number of tunnels and the holding capacity of motor vehicles in China, the number of fires tends to rise year by year based on the structures from the tunnels to the tunnels and the existence of irregular driving conditions of motor vehicle owners. The existing personnel often adopt a numerical simulation mode to study fire characteristics and personnel evacuation rules of the highway tunnel, wherein FDS (Fire Dynamics Simulator) software or Pyrosim software based on FDS secondary development is adopted when the highway tunnel fire simulation is carried out, FDS or Pathfnder software is adopted when the highway tunnel personnel evacuation simulation is carried out, and the software can be used for establishing a numerical model of the highway tunnel based on FDS codes. If vehicles are arranged in the highway tunnel numerical model, the vehicles are required to be calculated and FDS codes are set in sequence, and the problems of complex calculation, easy error, unreasonable arrangement and the like exist. Due to the problems, when the existing highway tunnel fire and evacuation simulation is performed, the vehicle arrangement is often ignored or simplified, so that a certain deviation exists in the simulation result. It is further desirable to propose a new vehicle layout simulation method to optimize the problem of accomplishing personnel evacuation in the case of an emergency tunnel.
Disclosure of Invention
The invention mainly aims to provide a simulation method and a system for vehicle layout in a highway tunnel, and aims to solve the technical problem that the existing tunnel evacuation simulation system cannot realize accurate simulation.
In order to achieve the above object, the present invention provides a vehicle layout simulation method in a highway tunnel, the method comprising the steps of:
s10, setting vehicle type parameters, personnel type parameters, road tunnel space parameters and lane parameters, wherein the road tunnel comprises a plurality of lanes;
s20, obtaining the ratio of the number of corresponding vehicles in the corresponding lanes to the total number of all vehicles according to the space parameters of the highway tunnel, the parameters of each vehicle type and the parameters of the lanes;
s30, obtaining the number of vehicles in the corresponding lane according to the space parameters of the highway tunnel, the parameters of each vehicle type and the ratio of the number of the corresponding vehicle types in the corresponding lane to the total number of all the vehicle types;
s40, obtaining the number of corresponding vehicle types in the corresponding lanes according to the ratio of the number of vehicles in each lane to the number of corresponding vehicle types in the corresponding lanes to the total number of all vehicle types;
s50, vehicles in each lane are arranged randomly to obtain corresponding arrangement sets, and the length of each set is equal to the number of vehicles in the corresponding lane;
s60, obtaining the positions of all vehicles of each lane according to the set of the vehicle arrangement of each lane and the average vehicle distance of each lane, and outputting the positions by FDS codes until the FDS codes of all the vehicles of all the lanes are output;
s70, substituting all the output FDS codes into target fire simulation or evacuation simulation software to establish a highway tunnel fire simulation or evacuation simulation model containing vehicles.
Optionally, the step S10 specifically includes:
setting parameters VT of various vehicle types i Parameters VT of each vehicle model i Including the length L of the vehicle VTi Number of person loads P of vehicle type VTi And the vehicle type ratio R VTi I is more than or equal to 1 and less than or equal to m, wherein m is a model type numerical value;
setting personnel type parameters including different personnel types PT j And different types of person duty ratios R PTj J is more than or equal to 1 and less than or equal to n, wherein n is a human type class value;
setting space parameters of a highway tunnel, wherein the space parameters comprise the length of the tunnel, the width of the tunnel and the height of the tunnel, and the tunnel comprises l lanes, and l is more than or equal to 1 and less than or equal to 4;
setting parameters of each lane, wherein each lane parameter comprises an average vehicle distance VS of each lane k And the duty ratio R (R VTi ，VL k )，1≤k≤l。
Optionally, the step S10 specifically includes:
setting parameters VT of various vehicle types i Parameters VT of each vehicle model i Including the length L of the vehicle VTi Number of person loads P of vehicle type VTi And the vehicle type ratio R VTi I is more than or equal to 1 and less than or equal to m, wherein m is a model type numerical value;
setting personnel type parameters including different personnel types PT j And different types of person duty ratios R PTj J is more than or equal to 1 and less than or equal to n, wherein n is a human type class value;
setting space parameters of a highway tunnel, wherein the space parameters comprise the length of the tunnel, the width of the tunnel and the height of the tunnel, and the tunnel comprises l lanes, and l is more than or equal to 1 and less than or equal to 5;
setting parameters of each lane, wherein each lane parameter comprises an average vehicle distance VS of each lane k And the duty ratio R (R VTi ，VL k )，1≤k≤l。
Optionally, the step S20 is to obtain, according to the space parameter of the highway tunnel, the parameters of each vehicle type and the parameters of the lane, a ratio of the number of the corresponding vehicle types in the corresponding lanes to the total number of all vehicle types, and specifically includes:
the duty ratio R (R VTi ，VL k ) Ratio R of vehicle to each model VTi Obtaining the ratio R (R VTi ，VL k ，TVN)。
Optionally, the step S30 is to obtain the number of vehicles in the corresponding lane according to the highway tunnel space parameter, the vehicle type parameter and the ratio of the number of corresponding vehicles in the corresponding lane to the total number of all vehicles, and specifically includes:
average vehicle distance VS of each lane according to tunnel length k Each model is in the opposite directionThe ratio R (R VTi ，VL k TVN), vehicle length L VTi Obtaining the vehicle number VN of the corresponding lane k The specific formula is as follows:
Figure BDA0004060784350000031
optionally, the step S40 is configured to obtain the number of corresponding vehicle types in the corresponding lanes according to the ratio of the number of vehicles in each lane to the number of corresponding vehicle types in the corresponding lanes to the total number of all vehicle types, and specifically includes:
according to the number VN of vehicles in each lane k The ratio R (R VTi ，VL k TVN) to obtain the number VN of corresponding vehicle types in corresponding lanes k (VT i )。
Optionally, after S30, the method further includes:
according to the number VN of vehicles in each lane k Obtaining the total TVN of all the vehicle types.
Optionally, after the step S40, the method further includes:
according to the number VN of corresponding lanes of each vehicle type k (VT i ) Number P of person loads of vehicle type VTi Obtaining the personnel load quantity TP (R) of the corresponding vehicle model in the corresponding lane VTi ，VL k )；
According to the personnel load quantity TP (R) VTi ，VL k ) Obtaining the total personnel load TP (VL) of all the vehicle types on the corresponding lanes k ) And according to the total number of people loads TP (VL) k ) Obtaining total personnel load TP in the tunnel;
according to the total number TP of personnel loads in the tunnel and the ratio R of different types of personnel PTj Obtaining the total personnel load number TP of the personnel of the corresponding type j 。
Optionally, the step S10 further includes:
ratio R of each vehicle type VTi The following formula needs to be satisfied:
Figure BDA0004060784350000032
the duty ratio R of each type of personnel PTj The following formula needs to be satisfied:
Figure BDA0004060784350000033
the ratio R (R VTi ，VL k ) The following formula needs to be satisfied:
Figure BDA0004060784350000034
in addition, in order to achieve the above object, the present invention also provides a system for laying out vehicles in a highway tunnel, which includes a memory, a processor, and a program for simulating laying out vehicles in a highway tunnel stored in the memory and operable on the processor, wherein the program for simulating laying out vehicles in a highway tunnel, when executed by the processor, implements the steps of the method for simulating laying out vehicles in a highway tunnel as described above.
The beneficial effects are that:
according to the vehicle layout simulation method in the highway tunnel, the vehicle type parameter, the personnel type parameter, the highway tunnel space parameter and the lane parameters are set, the highway tunnel comprises a plurality of lanes, and the vehicle number of the corresponding lanes is obtained according to the ratio of the highway tunnel space parameter, the vehicle type parameter and the number of the corresponding vehicles in the corresponding lanes to the total number of all the vehicles; obtaining the number of corresponding vehicle types in the corresponding lanes according to the ratio of the number of vehicles in each lane to the number of corresponding vehicle types in the corresponding lanes to the total number of all vehicle types; the vehicles of each lane are arranged randomly to obtain corresponding arrangement sets, and the length of each set is equal to the number of the vehicles of the corresponding lane; obtaining the positions of all vehicles of each lane according to the set of the vehicle arrangement of each lane and the average vehicle distance of each lane, and outputting the positions by FDS codes until the FDS codes of all the vehicles of all the lanes are output; and substituting all the output FDS codes into target fire simulation software to establish a highway tunnel fire simulation or evacuation simulation model containing the vehicle. The simulation method of the invention can rapidly calculate the parameters of vehicle arrangement and personnel load parameters, automatically generate corresponding vehicle model FDS codes, effectively and accurately arrange vehicles in the road tunnel fire and evacuation simulation model, and improve the modeling efficiency and the accuracy of the simulation result.
Drawings
FIG. 1 is a schematic diagram of a simulation system for vehicle layout in a highway tunnel according to an embodiment of the present invention;
FIG. 2 is a flow chart of an embodiment of a method for simulating vehicle layout in a highway tunnel according to the present invention.
FIG. 3 is a view of a simulated interface for vehicle layout in a highway tunnel;
FIG. 4 is an example screenshot of a personnel load parameter for calculating and outputting a highway tunnel numerical model;
FIG. 5 is a screenshot of an output vehicle arrangement FDS code in an embodiment.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a vehicle layout simulation system in a highway tunnel according to an embodiment of the present invention.
As shown in fig. 1, the system may include: a processor 1001, such as a CPU, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the configuration of the in-highway tunnel vehicle layout simulation system shown in fig. 1 is not limiting of the in-highway tunnel vehicle layout simulation system and may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The specific embodiments of the vehicle layout simulation system in the highway tunnel are basically the same as the embodiments of the vehicle layout simulation method in the highway tunnel, and are not described in detail herein.
Referring to fig. 2, a method for simulating vehicle layout in a highway tunnel according to the present invention provides a schematic flow chart of a first embodiment, the method includes:
step S10, vehicle type parameters, personnel type parameters, highway tunnel space parameters and lane parameters are set, and the highway tunnel comprises a plurality of lanes. Specifically, various vehicle model parameters VT are set i Parameters VT of each vehicle model i Including the length L of the vehicle VTi Width W of vehicle VTi Height H of vehicle VTi Number of person loads P of vehicle type VTi And the vehicle type ratio R VTi I is more than or equal to 1 and less than or equal to m, wherein the vehicle type comprises the types of vehicles such as a small bus, a medium bus, a large bus, a small truck, a large truck and the like, and the ratio R of each vehicle type VTi The following formula needs to be satisfied:
Figure BDA0004060784350000051
and setting personnel type parameters including different personnel types PT j And different types of person duty ratios R PTj J is more than or equal to 1 and less than or equal to n, n is a set personnel type category value comprising PT 1 、PT 2 ...PT j ...PT n-1 、PT n In general, it is possible to set type classification of adult men, adult women, elderly men, minors (8-17 years old), minors (0-7 years old) and the likeIn such a way that the personnel of each type occupy a proportion R PTj The following formula needs to be satisfied:
Figure BDA0004060784350000052
and setting the space parameters of the highway tunnel, wherein the space parameters comprise the length of the tunnel, the width of the tunnel and the height of the tunnel, generally, the length direction is taken as the X-axis direction, the width direction is taken as the Y-axis direction, the height direction is taken as the Z-axis direction, and then the X-axis direction is used for the X-initial coordinate of the highway tunnel start X for indicating end coordinates end The length of road tunnel is represented by |X end -X start -representation; z for Z coordinate of tunnel pavement 0 The representation, and the tunnel, includes l lanes, 1.ltoreq.l.ltoreq.5, and sets the Y-coordinate for the center line of each lane to be set, e.g. Y 1 、Y 2 ...Y j ...Y n-1 、Y n In a specific embodiment, as shown in fig. 3, the number of lanes may be set to be 3, the vehicle distance of each lane is 5.0m, the simulation length is 1000m, the line Y coordinates of each lane are sequentially 3.5, 7.0 and 10.5, the vehicle distance may be considered to be 3-10m when the vehicle is jammed, the vehicle distance may be considered to be 50-60m when the vehicle is unblocked, and other conditions may be considered as appropriate.
Meanwhile, parameters of each lane are also required to be set, and each lane parameter comprises the average vehicle distance VS of each lane k And the duty ratio R (R VTi ，VL k ) At the same time, the duty ratio R (R VTi ，VL k ) The following formula needs to be satisfied:
Figure BDA0004060784350000061
in a practical embodiment, an embodiment may be generally provided: the distribution proportion of different lanes of the small bus is 0.6, 0.3 and 0.1, the distribution proportion of different lanes of the large bus is 0.3, 0.5 and 0.2, the distribution proportion of different lanes of the medium bus is 0.2, 0.6 and 0.2, the distribution proportion of different lanes of the small truck is 0.1, 0.4 and 0.5, the distribution proportion of different lanes of the large truck is 0.1, 0.2 and 0.7, and the corresponding setting can be adjusted according to actual needs.
After the above parameter setting is completed, the following steps may be performed:
s20, obtaining the ratio of the number of corresponding vehicles in the corresponding lanes to the total number of all vehicles according to the space parameters of the highway tunnel, the parameters of each vehicle type and the lane parameters.
Specifically, the duty ratio R (R VTi ，VL k ) Ratio R of vehicle to each model VTi Obtaining the ratio R (R VTi ，VL k TVN), the specific formula is as follows:
Figure BDA0004060784350000062
s30, obtaining the number of vehicles in the corresponding lane according to the space parameters of the highway tunnel, the parameters of each vehicle type and the ratio of the number of the corresponding vehicle types in the corresponding lane to the total number of all the vehicle types;
specifically, according to the length |X of the tunnel end -X start Vehicle average distance VS for each lane k The ratio R (R VTi ，VL k TVN), vehicle length L VTi Obtaining the vehicle number VN of the corresponding lane k The specific formula is as follows:
Figure BDA0004060784350000063
further, it is also possible to make the vehicle number VN of each lane k Obtaining the total TVN of all the vehicle types. The specific formula is as follows: tvn=vn 1 +VN 2 ...+VN l-1 +VN l 。
And executing step S40, obtaining the number of the corresponding vehicle types in the corresponding lanes according to the ratio of the number of the vehicles in each lane to the number of the corresponding vehicle types in the corresponding lanes to the total number of all the vehicle types, and specificallyGround, according to the number VN of vehicles in each lane k The ratio R (R VTi ，VL k TVN) to obtain the number VN of corresponding vehicle types in corresponding lanes k (VT i ) The specific formula is as follows:
Figure BDA0004060784350000071
further, after step S40, the method further includes:
according to the number VN of corresponding lanes of each vehicle type k (VT i ) Number P of person loads of vehicle type VTi Obtaining the personnel load quantity TP (R) of the corresponding vehicle model in the corresponding lane VTi ，VL k ) The specific formula is as follows:
TP(R VTi ，VL k )＝VN k (VT i )×P VTi ；
further, according to the personnel load quantity TP (R VTi ，VL k ) Obtaining the total personnel load TP (VL) of all the vehicle types on the corresponding lanes k ) The specific formula is as follows: TP (VL) k )＝TP(R VT1 ，VL k )+TP(R VT2 ，VL k )...+TP(R VTm-1 ，VL k )+TP(R VTm ，VL k )；
And according to the total number of people loads TP (VL) k ) The total personnel load TP in the tunnel is obtained, and the specific formula is as follows: tp=tp (VL 1 )+TP(VL 2 )...+TP(VLl -1 )TP(VLl)；
And according to the total personnel load TP and the different types of personnel duty ratio R in the tunnel PTj Obtaining the total personnel load number TP of the personnel of the corresponding type j ，TP j ＝TP×R PTj In a specific embodiment, the system outputs the calculation result in this step, as shown in fig. 4, to provide a basis for setting the personnel load and distribution parameters in the highway tunnel evacuation numerical model.
Further, step S50 is performed to obtain a corresponding alignment set for the vehicles that randomly align the lanesVArray(VL k )，VArray(VL k ) Comprises the following elements: VN (virtual machine) k (VT 1 ) VT of (v) 1 ，VN k (VT 2 ) VT of (v) 2 ，VN k (VT 3 ) VT of (v) 3 …VN k (VT m-1 ) VT of (v) m-1 ，VN k (VT m ) VT of (v) m The difference between the arranged sets obtained by random arrangement is that the arrangement order is different, and the length of each set is equal to the vehicle number VN of the corresponding lane k 。
Further, step S60 is performed according to a set VArray (VL k ) And average distance VS of vehicles in each lane k The positions of all vehicles in each lane are obtained and output as FDS codes until the FDS codes of all vehicles in all lanes are output.
Specifically, in X start Starting from VS k For spacing, according to VArray (VL) k ) The vehicles are arranged in a row by the medium elements (vehicle types). Wherein, the X end coordinate of the arranged a-th vehicle is set as X a,end And assuming that the type of the (a+1) th vehicle arranged is VT i Then the start coordinate X of X, Y, Z of the a+1th vehicle a+1,start ,X a+1,end ，Y a+1,start ,Y a+1,end ，；Z a+1,start ,Z a+1,end And can be calculated by the following formulas, respectively.
X a+1，start ＝X a，end +VS k ；
Figure BDA0004060784350000084
Figure BDA0004060784350000081
Figure BDA0004060784350000082
Z a+1，start ＝ Z 0；
Figure BDA0004060784350000083
Further, the system outputs FDS codes of the (a+1) th vehicle of the kth lane such as "&OBST XB＝X a+1,start ,X a+1,end ，Y a+1,start ,Y a+1,end ，；Z a+1,start ,Z a+1,end /". Preferably, if other modeling parameters (such as COLOR, surf_id, matl_id, etc.) are also set in step S10, the output FDS code also contains the above parameters. And steps S50 to S60 are cyclically repeated until the FDS codes of all vehicles of all lanes are output.
Further, step S70 is executed to substitute all the output FDS codes into the target fire simulation or evacuation simulation software to implement the establishment of the road tunnel fire simulation or evacuation simulation model including the vehicle.
Specifically, the FDS code generated in step S60 is imported into fire simulation software Pyrosim, and may be used to quickly build a highway tunnel fire simulation model including vehicles; or importing the FDS code generated in the step S60 into evacuation simulation software Pathfinder, and setting personnel load parameters according to the calculation result in the step S60, so as to quickly establish a highway tunnel evacuation simulation model containing vehicles; other necessary other FDS codes can be added on the basis of the result calculated in the step S60 and the generated FDS codes, other necessary parameters are set, and then FDS software is directly used for fire simulation or evacuation simulation. In the embodiment, the fire simulation model and the evacuation simulation model are built through the steps, the distribution differences of different types of vehicles in different lanes are taken into consideration, the model is closer to the actual situation, and the obtained simulation result is more scientific and accurate.
In addition, in view of the influence of the distribution positions of different types of vehicles on fire smoke spreading, transportation and personnel evacuation escape, a system can be used for randomly generating a plurality of groups of FDS codes meeting the parameter requirements under the condition of setting the same parameters such as space coordinates of a tunnel numerical model, vehicle size, vehicle type proportion, lane distribution differences of different vehicle types and the like. And then referring to step S70, the FDS code is used for building a plurality of groups of fire simulation models or personnel evacuation models for simulation, and mathematical statistical processing (such as averaging, median, probability distribution, standard deviation, variance and the like) is performed on simulation results of each group of models, so that more sufficient data support is provided for evaluating the fire safety of the tunnel.
Furthermore, in order to improve the accuracy of the simulation structure for creating the model, the related settings of the personnel types and the corresponding vehicle types can be further set, for example, the model can not be set in a matching manner with a minivan or a large van for old women, old men and minors, and the minors can not independently take a certain vehicle type, and the like, and special condition settings can be set for part of special personnel types, so that the conditions for creating the model are enriched, and the simulation of the vehicle layout mode corresponding to different actual conditions is facilitated.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (9)

1. A method for simulating vehicle layout in a highway tunnel, the method comprising the steps of:
s10, setting vehicle type parameters, personnel type parameters, road tunnel space parameters and lane parameters, wherein the road tunnel comprises a plurality of lanes;
s20, obtaining the ratio of the number of corresponding vehicles in the corresponding lanes to the total number of all vehicles according to the space parameters of the highway tunnel, the parameters of each vehicle type and the parameters of the lanes;
s30, obtaining the number of vehicles in the corresponding lane according to the space parameters of the highway tunnel, the parameters of each vehicle type and the ratio of the number of the corresponding vehicle types in the corresponding lane to the total number of all the vehicle types;
s40, obtaining the number of corresponding vehicle types in the corresponding lanes according to the ratio of the number of vehicles in each lane to the number of corresponding vehicle types in the corresponding lanes to the total number of all vehicle types;
s50, vehicles in each lane are arranged randomly to obtain corresponding arrangement sets, and the length of each set is equal to the number of vehicles in the corresponding lane;
s60, obtaining the positions of all vehicles of each lane according to the set of the vehicle arrangement of each lane and the average vehicle distance of each lane, and outputting the positions by FDS codes until the FDS codes of all the vehicles of all the lanes are output;
s70, substituting all the output FDS codes into target fire simulation or evacuation simulation software to establish a highway tunnel fire simulation or evacuation simulation model containing vehicles.
2. The method for simulating vehicle layout in a highway tunnel according to claim 1, wherein S10 specifically comprises:
setting parameters VT of various vehicle types i Parameters VT of each vehicle model i Including the length L of the vehicle VTi Number of person loads P of vehicle type VTi And the vehicle type ratio R VTi I is more than or equal to 1 and less than or equal to m, wherein m is a model type numerical value;
setting personnel type parameters including different personnel types PT j And different types of person duty ratios R PTj J is more than or equal to 1 and less than or equal to n, wherein n is a human type class value;
setting space parameters of a highway tunnel, wherein the space parameters comprise the length of the tunnel, the width of the tunnel and the height of the tunnel, and the tunnel comprises l lanes, and l is more than or equal to 1 and less than or equal to 5;
setting parameters of each lane, wherein each lane parameter comprises an average vehicle distance VS of each lane k And the duty ratio R (R VTi ，VL k )，1≤k≤l。
3. The method for simulating vehicle layout in a highway tunnel according to claim 2, wherein the step S20 is to obtain the ratio of the number of corresponding vehicles in the corresponding lanes to the total number of all vehicles according to the spatial parameters of the highway tunnel, the parameters of each vehicle type and the parameters of the lanes, and specifically comprises:
the duty ratio R (R VTi ，VL k ) Ratio R of vehicle to each model VTi Obtaining the ratio R (R VTi ，VL k ，TVN)。
4. The method for simulating vehicle layout in a highway tunnel according to claim 3, wherein the step S30 is to obtain the number of vehicles in the corresponding lane according to the highway tunnel space parameter, the model parameters and the ratio of the number of corresponding vehicles in the corresponding lane to the total number of all the models, and specifically comprises:
average vehicle distance VS of each lane according to tunnel length k The ratio R (R VTi ，VL k TVN), vehicle length L VTi Obtaining the vehicle number VN of the corresponding lane k The specific formula is as follows:
Figure FDA0004060784340000021
5. the method for simulating vehicle layout in a highway tunnel according to claim 4, wherein the step S40 is performed to obtain the number of corresponding vehicle types in the corresponding lanes according to the ratio of the number of vehicles in each lane to the number of corresponding vehicle types in the corresponding lanes to the total number of all vehicle types, and specifically comprises:
according to the number VN of vehicles in each lane k The ratio R (R VTi ，VL k TVN) to obtain the number VN of corresponding vehicle types in corresponding lanes k (VT i )。
6. The method for simulating vehicle layout in a highway tunnel according to claim 4, further comprising, after S30:
according to the number VN of vehicles in each lane k Obtaining the total TVN of all the vehicle types.
7. The method for simulating vehicle layout in a highway tunnel according to claim 5, further comprising, after step S40:
according to the number VN of corresponding lanes of each vehicle type k (VT i ) Number P of person loads of vehicle type VTi Obtaining the personnel load quantity TP (R) of the corresponding vehicle model in the corresponding lane VTi ，VL k )；
According to the personnel load quantity TP (R) VTi ，VL k ) Obtaining the total personnel load TP (VL) of all the vehicle types on the corresponding lanes k ) And according to the total number of people loads TP (VL) k ) Obtaining total personnel load TP in the tunnel;
according to the total number TP of personnel loads in the tunnel and the ratio R of different types of personnel PTj Obtaining the total personnel load number TP of the personnel of the corresponding type j 。
8. The in-highway tunnel vehicle layout simulation method according to any one of claims 2 to 7, wherein in S10 further comprises:
ratio R of each vehicle type VTi The following formula needs to be satisfied:
Figure FDA0004060784340000031
the duty ratio R of each type of personnel PTj The following formula needs to be satisfied:
Figure FDA0004060784340000032
the ratio R (R VTi ，VL k ) The following formula needs to be satisfied:
Figure FDA0004060784340000033
9. a road tunnel interior vehicle layout system comprising a memory, a processor and a road tunnel interior vehicle layout simulation program stored on the memory and operable on the processor, the road tunnel interior vehicle layout simulation program when executed by the processor implementing the steps of the road tunnel interior vehicle layout simulation method of any one of claims 1 to 8.
CN202310057838.3A 2023-01-18 2023-01-18 Vehicle layout simulation method and system in highway tunnel Pending CN116108656A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310057838.3A CN116108656A (en) 2023-01-18 2023-01-18 Vehicle layout simulation method and system in highway tunnel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310057838.3A CN116108656A (en) 2023-01-18 2023-01-18 Vehicle layout simulation method and system in highway tunnel

Publications (1)

Publication Number Publication Date
CN116108656A true CN116108656A (en) 2023-05-12

Family

ID=86255689

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310057838.3A Pending CN116108656A (en) 2023-01-18 2023-01-18 Vehicle layout simulation method and system in highway tunnel

Country Status (1)

Country Link
CN (1) CN116108656A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117371836A (en) * 2023-09-28 2024-01-09 长沙理工大学 Highway tunnel fire rescue capability assessment method and system based on regional visual angle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117371836A (en) * 2023-09-28 2024-01-09 长沙理工大学 Highway tunnel fire rescue capability assessment method and system based on regional visual angle
CN117371836B (en) * 2023-09-28 2024-04-09 长沙理工大学 Highway tunnel fire rescue capability assessment method and system based on regional visual angle

Similar Documents

Publication Publication Date Title
CN106021961B (en) City standard state of cyclic operation construction method based on genetic algorithm optimization
CN116108656A (en) Vehicle layout simulation method and system in highway tunnel
CN111931280B (en) Optimization method for building total plane design based on building fireproof requirement
CN107784380A (en) The optimization method and optimization system of a kind of inspection shortest path
CN107526906A (en) A kind of driving style device for identifying and method based on data acquisition
Poghosyan et al. Logarithmic two-point correlators in the Abelian sandpile model
Hyncik et al. On scaling virtual human models
CN111190829B (en) Automatic intersection test model data construction method and device
CN113761622A (en) Parameterized city modeling method and device, storage medium and terminal equipment
CN108153995A (en) Test pattern selection method and device and method and device for building photoetching model
CN107679305B (en) Road network model creating method and device
CN107688431B (en) Man-machine interaction method based on radar positioning
Kozhevnikov et al. Development of subroutine for automatic building of finite-element models of typical metal pylons of air power transmission lines
CN114428494B (en) PID parameter calibration method, equipment and medium for electric vehicle controller
CN116186825B (en) Shear wall design method and device based on graph node classification graph neural network
Huang Integrate the Hungarian method and genetic algorithm to solve the shortest distance problem
CN106570282A (en) Office building air conditioning energy consumption splitting method
CN117436283B (en) Computer aided design method, system and storage medium for chimney
CN110502836B (en) Deployment method and system of gas sensor
CN110611881B (en) Control node determination method and device
CN112598229B (en) Vehicle stability score testing method, system and storage medium
CN116150837B (en) Shear wall design method and device based on edge feature prediction graph neural network
Gao et al. Research on improvement of parameter calibration method for micro-simulation model of signalized intersection
CN114897314A (en) Method for dynamically adjusting and arranging isolation devices in public transport hub
Richard Staircase polygons: Moments of diagonal lengths and column heights

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