CN116229659A - Tunnel traffic control system and traffic control method suitable for low-grade highway - Google Patents
Tunnel traffic control system and traffic control method suitable for low-grade highway Download PDFInfo
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- CN116229659A CN116229659A CN202310504465.XA CN202310504465A CN116229659A CN 116229659 A CN116229659 A CN 116229659A CN 202310504465 A CN202310504465 A CN 202310504465A CN 116229659 A CN116229659 A CN 116229659A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
Abstract
The invention discloses a tunnel traffic control system and a traffic control method suitable for a low-grade highway, wherein the system comprises a temperature sensor, a smoke sensor, a human body sensor, a jet fan, an LED guide assembly and a management station control module; the method includes receiving temperature data throughout the tunnel; judging the detection temperature; giving out fire early warning, starting the LED guide assembly, and acquiring the fire position; acquiring a traffic control scheme for pedestrians; according to the invention, the local flat guide is arranged, the plurality of sensors are arranged in the tunnel, the corresponding guiding indication path and smoke exhaust path are formulated through the management station control module, and finally, the traffic control is realized through the LED guiding assembly, so that when an accident occurs in the ultra-long tunnel of the low-grade highway, the jet fan and the LED guiding assembly are matched to guide vehicles and pedestrians in the tunnel, and the vehicles and pedestrians in the tunnel are prevented from accumulating.
Description
Technical Field
The invention relates to the technical field of traffic control, in particular to a tunnel traffic control system and a traffic control method suitable for low-grade highways.
Background
At present, for high-grade highways, after accidents happen in tunnels, traffic control systems and traffic control methods are targeted to realize normal traffic, but for low-grade highways (secondary, tertiary and quaternary), after accidents happen in tunnels, corresponding traffic control systems are lacking, if short tunnels are short, traffic control and dredging can be performed through spontaneous behaviors of pedestrians, but if ultra-long tunnels are targeted, traffic control through spontaneous behaviors cannot be completed, and serious consequences can be caused.
Disclosure of Invention
The invention aims to solve the technical problem that a traffic control system of an ultralong tunnel aiming at a low-grade highway is lacked, and aims to provide a tunnel traffic control system and a traffic control method applicable to the low-grade highway, so that traffic control of the ultralong tunnel after an accident occurs is realized.
The invention is realized by the following technical scheme:
tunnel traffic control system suitable for low-grade highway, the both ends of tunnel are provided with local level and lead, include: the smoke exhaust cross hole is connected with the inside and the outside of the tunnel, the temperature sensor is arranged in the tunnel, the smoke sensor is arranged in the tunnel, the human body sensor is arranged in the tunnel, and the jet fan is arranged at the top of the tunnel;
the control system also comprises an LED guide assembly and a management station control module which are arranged on the inner wall of the tunnel; the temperature sensor, the smoke sensor, the human body sensor, the jet fan and the LED guide assembly are all electrically connected with the management station control module;
a plurality of temperature sensor follows the axis equidistance setting in tunnel, a plurality of smoke transducer follows the axis equidistance setting in tunnel, a plurality of body sensor follows the axis equidistance setting in tunnel.
Specifically, the number of the smoke discharging transverse holes is n,
wherein->
L is the length of the tunnel, x is the set furthest escape distance, and +.>
The flat guide length required by the specification; the actual length of the local conductance is l, < >>
；
The minimum distance between each smoke discharging transverse hole and the local flat guide is 2x, and the distance between two adjacent smoke discharging transverse holes is 2x.
Optionally, the LED guidance assembly includes a pedestrian guidance assembly and a vehicle guidance assembly, each of which is electrically connected with the management station control module; the pedestrian guiding component is used for guiding pedestrians in the tunnel to move in the tunnel, and the vehicle guiding component is used for prompting the vehicle to run or pause.
Optionally, the pedestrian guiding component is disposed on a lower side wall of the tunnel and along a central axis of the tunnel, and the vehicle guiding component is disposed on a top of the tunnel.
Optionally, the set furthest escape distance x is less than or equal to 720m, and the actual length l=1020 m of the local conductance.
A tunnel traffic control method applicable to a low-grade highway based on the tunnel traffic control system as described above, the traffic control method comprising the steps of:
s1, continuously receiving temperature data of all positions in a tunnel, which are detected by a plurality of temperature sensors, in real time by a management station control module;
s2, the management station control module judges the detection temperature of the temperature sensor, wherein the detection temperature comprises three conditions;
(1) If the temperature is less than 40 ℃, judging that no abnormality exists, and continuing the step S1;
(2) If the temperature is between 40 ℃ and 200 ℃, acquiring the position of the abnormal temperature, and detecting smoke through a smoke sensor; if the smoke concentration does not exceed the threshold value, continuing the step S1; if the smoke concentration exceeds the limit value, performing step S3;
(3) If the temperature is higher than 200 ℃, performing step S3;
s3, the management station control module gives out fire disaster early warning, and the LED guide assembly is started to prevent the vehicle from entering the tunnel; simultaneously acquiring a fire position through a temperature sensor and a smoke sensor;
s4, judging the position relation between the fire position and the tunnel, and acquiring a traffic control scheme aiming at pedestrians;
s5, starting the LED guide assembly, guiding pedestrians to move in the tunnel according to the traffic control scheme, and starting the jet fan.
Specifically, the traffic control scheme comprises a smoke control stage, a traffic guiding stage and a smoke discharging stage;
the smoke control stage comprises the following steps: after the fire position is determined, a jet fan near the fire position is started, and the symmetrical spreading of smoke is controlled;
the traffic guidance phase includes: starting the LED guide assembly and guiding the pedestrian to move to a safe position along the guide indication path;
the fume exhaust stage comprises: and starting a jet fan on the smoke discharging path and driving the smoke to be discharged along the smoke discharging path.
Specifically, the distance between the fire position and the tunnel portal is set to be k, the length of the flat guide is set to be l, and n smoke discharging transverse holes are sequentially named as 1 st smoke discharging transverse hole, 2 nd smoke discharging transverse hole, … …, i th smoke discharging transverse hole and … … th smoke discharging transverse hole from the tunnel portal to the middle part of the tunnel
A plurality of smoke discharging transverse holes;
the guiding instruction route selection in the traffic guiding stage and the smoke discharging route selection method in the smoke discharging stage are as follows:
the selection method comprises the following various situations:
case one: when k is less than l+x, the guiding indication path is directed to a local level guide from the fire position; the smoke discharging path points to the tunnel portal from the fire position;
and a second case: when (when)
＜k＜/>
The guiding indication path points to the ith smoke discharging transverse hole from the fire position and ends at the smoke-free side of the ith smoke discharging transverse hole; the smoke exhaust path is from the fire position to the ith smoke exhaust cross hole.
Optionally, the traffic control method further comprises:
s6, carrying out human body image recognition on the smoke exhaust path through a human body sensor, and if pedestrians exist in the smoke exhaust path, continuing a smoke control stage and a traffic guiding stage; if no pedestrian exists in the smoke exhaust path, the smoke exhaust stage is started.
Optionally, the set furthest escape distance x=720 m, the actual length l=1020 m of the local conductance is 2x, and the distance between the ith transverse smoke vent and the (i+1) th transverse smoke vent is 2x.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, the local flat guide is arranged at two ends of the tunnel, the plurality of sensors are arranged in the tunnel to detect fire spots, the corresponding guiding indication path and smoke exhaust path are formulated through the management station control module, and finally, the traffic control on pedestrians and vehicles is realized through the jet fan and the LED guiding assembly, so that when an accident occurs in the ultra-long tunnel of the low-grade highway, the jet fan and the LED guiding assembly are matched to discharge smoke and guide the vehicles and pedestrians in the tunnel, and the accumulation of the vehicles and pedestrians in the tunnel is avoided, so that more serious accidents are caused.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a flow chart illustrating a tunnel traffic control method for a low-grade highway according to the present invention.
Fig. 2 is a schematic diagram of a third embodiment according to the present invention.
Fig. 3 is a schematic diagram of a third embodiment according to the present invention.
Fig. 4 is a schematic diagram of a second case in a third embodiment according to the present invention.
Fig. 5 is a schematic diagram of a third case in a third embodiment according to the present invention.
Fig. 6 is a schematic diagram of a fourth case in a third embodiment according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and embodiments, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the invention.
It should be further noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
Embodiments of the present invention and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Compared with the super-long tunnel of the expressway and the primary highway (hereinafter referred to as the expressway), the super-long tunnel of the low-level highway (the secondary, tertiary and quaternary highways) has higher disaster prevention and rescue difficulties. The reason is that the high-grade highway is provided with the double-hole tunnel, the left and right holes are connected through the pedestrian crossing channel or the vehicle crossing channel, once the accident happens in the tunnel, fire disaster occurs, pedestrians or vehicles can move to the tunnel without the accident, and normal passing can be realized.
The low-grade highway is a single-hole bidirectional running tunnel, and once a traffic accident occurs in the tunnel to generate fire, traffic is completely paralyzed, and pedestrians and vehicles cannot normally pass.
Therefore, the specification specifies that the ultra-long tunnel (more than 3 km) of the low-grade highway should be provided with parallel pilot holes, and the parallel pilot holes are preferably arranged in a full-length way, and a crosswalk or a crosswalk is arranged between the parallel pilot holes and the main hole at a distance of 250m, and simultaneously specifies that: when the conditions are limited, it can be set locally.
Aiming at the locally arranged super-long tunnel, related traffic control systems are lacked to control pedestrians or vehicles in the tunnel, the embodiment provides a tunnel traffic control system which is applicable to low-grade highways and aims at local leveling, and local leveling is arranged at two ends of the tunnel.
The traffic control system includes:
connect the inside and outside horizontal hole of discharging fume of tunnel, show the intercommunication in the one end of horizontal hole of discharging fume and the tunnel, the other end passes mountain and outside atmosphere intercommunication, and can set up the fan in the one end of horizontal hole of discharging fume, be convenient for discharge the smog or the air in the tunnel.
The temperature sensor is arranged in the tunnel and is used for detecting the temperature in the tunnel and judging whether fire disaster occurs or not through the temperature.
The smoke sensor is arranged in the tunnel and used for detecting smoke conditions in the tunnel, and whether fire disaster occurs can be judged in an auxiliary mode through the smoke.
The human body sensor is arranged in the tunnel and used for detecting the pedestrian condition in the tunnel and determining whether the pedestrian is in a safe position or not.
And the jet fan is arranged at the top of the tunnel and used for controlling the air flow in the tunnel.
And the LED guide assembly is arranged on the inner wall of the tunnel and is used for guiding pedestrians or vehicles to move in the tunnel.
The temperature sensor, the smoke sensor, the human body sensor, the jet fan and the LED guiding assembly are electrically connected with the management station control module, and the control of the electronic elements is realized through the management station control module.
In order to judge the position of the fire disaster occurrence point through the temperature sensors, a plurality of temperature sensors are equidistantly arranged along the axis of the tunnel, a plurality of smoke sensors are equidistantly arranged along the axis of the tunnel, and a plurality of body sensors are equidistantly arranged along the axis of the tunnel. The distance may be set to 250m.
In order to reduce the cost, the number of the smoke discharging transverse holes in the embodiment is n,
wherein->
L is the length of the tunnel, x is the set furthest escape distance, and +.>
The flat guide length required by the specification; the actual length of the local level guide is l, < >>
；
The minimum distance between each smoke discharging transverse hole and the local flat guide is 2x, and the distance between two adjacent smoke discharging transverse holes is 2x.
The actual length l=1020 m of the local flat guide, the set furthest escape distance x is less than or equal to 720m, the time from fire in a tunnel to explosion disaster is generally 5-10 min according to related researches, the personnel evacuation speed approved by fire protection profession is 1.2m/s, and the personnel escape distance in 5-10 min is 360-720 m, so that x is not more than 720m.
In this embodiment, the LED guide assembly includes a pedestrian guide assembly and a vehicle guide assembly, both of which are electrically connected with the management station control module; the pedestrian guiding assembly is used for guiding pedestrians in the tunnel to move in the tunnel, and the vehicle guiding assembly is used for prompting the vehicle to run or pause.
The pedestrian guide assembly is arranged on the side wall of the lower portion of the tunnel and is arranged along the central axis of the tunnel, so that when a pedestrian walks in the tunnel, the corresponding LED guide assembly can be seen.
The vehicle guidance assembly is positioned at the top of the tunnel such that the driver can see the corresponding LED guidance assembly.
Example two
The present embodiment provides a tunnel traffic control method applicable to a low-grade highway based on the tunnel traffic control system as described above, as shown in fig. 1, the method includes the following steps:
s1, continuously receiving temperature data of all positions in a tunnel, which are detected by a plurality of temperature sensors, in real time by a management station control module; multiple temperature sensors can monitor the real-time temperature of the entire tunnel.
S2, the management station control module judges the detection temperature of the temperature sensor, wherein the detection temperature comprises three conditions;
(1) If the temperature is less than 40 ℃, judging that no abnormality exists, and continuing the step S1; the accident is proved to not happen, and the vehicles in the tunnel can normally pass.
(2) If the temperature is between 40 ℃ and 200 ℃, acquiring the position of the abnormal temperature, and detecting smoke through a smoke sensor; if the smoke concentration does not exceed the threshold value, the normal temperature of the vehicle is proved to be possible, and the engine temperature is only higher, so that the step S1 is continued; if the smoke concentration exceeds the limit value, performing step S3;
(3) If the temperature is higher than 200 ℃, performing step S3;
s3, the management station control module gives out fire disaster early warning, the LED guide assembly is started to prevent vehicles from entering the tunnel, congestion caused by the fact that subsequent vehicles enter the tunnel is avoided, and danger to the vehicles entering later is avoided; simultaneously acquiring a fire position through a temperature sensor and a smoke sensor; namely, the position of the high temperature point relative to the tunnel is judged according to the detection data of different temperature sensors and smoke sensors, so that a specific fire disaster position can be obtained.
S4, judging the position relation between the fire position and the tunnel, and acquiring a traffic control scheme aiming at pedestrians;
s5, starting the LED guide assembly, guiding pedestrians to move in the tunnel according to the traffic control scheme, and starting the jet fan.
S6, carrying out human body image recognition on the smoke exhaust path through a human body sensor, and if pedestrians exist in the smoke exhaust path, continuing a smoke control stage and a traffic guiding stage; if no pedestrian exists in the smoke exhaust path, the smoke exhaust stage is started.
In step S4, the traffic control scheme includes a smoke control stage, a traffic guidance stage, and a smoke discharge stage;
the smoke control stage comprises the following steps: after the fire position is determined, a jet fan near the fire position is started, and the symmetrical spreading of smoke is controlled;
the traffic guidance phase includes: starting the LED guide assembly and guiding the pedestrian to move to a safe position along the guide indication path;
the smoke exhaust stage comprises the following steps: and starting a jet fan on the smoke discharging path and driving the smoke to be discharged along the smoke discharging path.
According to the position of fire disaster, different guiding indication paths and smoke discharging paths are required to be set, the distance between a pedestrian and a tunnel portal is set as p for descriptive convenience, the distance between the fire disaster position and the tunnel portal is set as k, the length of a flat guide is set as l, and n smoke discharging transverse holes are sequentially named as 1 st smoke discharging transverse hole, 2 nd smoke discharging transverse hole, … …, i th smoke discharging transverse hole and … … th smoke discharging transverse hole from the tunnel portal to the middle part of the tunnel
A plurality of smoke discharging transverse holes; />
Is rounded upward. The distance between the ith smoke discharging transverse hole and the (i+1) th smoke discharging transverse hole is 2x, and the distance between the 1 st smoke discharging transverse hole and the local flat guide is 2x.
The guiding instruction route selection in the traffic guiding stage and the smoke discharging route selection method in the smoke discharging stage are as follows:
the selection method comprises the following various situations:
case one: when k is less than l+x, the guiding indication path is directed to a local level guide from the fire position; the smoke discharging path points to the tunnel portal from the fire position; i.e. in this case the pedestrian can move into the local level guide and can discharge smoke directly through the tunnel.
And a second case: when (when)
＜k＜/>
The guiding indication path points to the ith smoke discharging transverse hole from the fire position and ends at the smoke-free side of the ith smoke discharging transverse hole; the smoke exhaust path is from the fire position to the ith smoke exhaust cross hole. In other words, in this case, the pedestrian cannot move into the local flat guide, and smoke needs to be discharged through the smoke discharge cross hole.
Example III
In this embodiment, as shown in fig. 2, taking a 6.4km two-level road super-long mountain-side tunnel as an example, 2 smoke discharge transverse holes are set, the set farthest escape distance x=720 m, and the actual length of local leveling l=1020 m.
The whole tunnel is divided into 5 sections through 2 smoke discharging transverse holes and 2 partial flat guiding parts at the inlet and outlet ends.
As shown in fig. 3, case one: when k < l, namely when the fire occurrence point is positioned in the local flat-conduction overlapping section.
The escape path is directed from the fire position to the local level guide; namely, the pedestrian can directly move into the local flat guide through the pedestrian crossing (the black arrow in the drawing indicates the escape direction of the pedestrian, and the following is the same), and the farthest escape distance is about 250m.
The smoke discharging path is from the fire position to the tunnel portal (the hollow arrow in the drawing indicates the smoke discharging direction, the same applies below), namely, smoke is directly and actively discharged through the tunnel.
In the case, pedestrians are in two cases, and p < k people move into the local flat guide, and p > k people only need to run the smoke control distance.
As shown in fig. 4, case two: when l < k < l+x, i.e. 1.44km section is at 720m section left.
The escape path is directed from the fire position to the local level guide; the person with p < k escapes into the flat guide, and the person with p > k only needs to run the smoke control distance
The smoke exhaust path is from the fire position to the tunnel portal.
As shown in FIG. 5, case three, when l+x < k < l+2x, i.e., 1.44km section is located at 720m section right.
The escape path points to the 1 st smoke discharging cross hole from the fire position and is terminated at the smoke-free side of the 1 st smoke discharging cross hole; the person with p < k only needs to run the smoke control distance, and the person with p > k can escape to the smoke-free side of the adjacent smoke discharge transverse hole
The smoke discharging path is from the fire position to the 1 st smoke discharging transverse hole.
As shown in FIG. 6, in case four, when l+2x < k < l+3x, i.e., the middle 1.44km section is located at the left 720m section.
The escape path points to the 1 st smoke discharging cross hole from the fire position and is terminated at the smoke-free side of the 1 st smoke discharging cross hole; the person with p < k can escape to the smoke-free side of the smoke-discharging transverse hole, and the person with p > k only needs to run the smoke-controlling distance
The smoke discharging path is from the fire position to the 1 st smoke discharging transverse hole.
Other cases are symmetrically arranged, and will not be described here.
In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the present application. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the invention. Other variations or modifications of the above-described invention will be apparent to those of skill in the art, and are still within the scope of the invention.
Claims (10)
1. Tunnel traffic control system suitable for low-grade highway, the both ends of tunnel are provided with local level and lead, its characterized in that includes: the smoke exhaust cross hole is connected with the inside and the outside of the tunnel, the temperature sensor is arranged in the tunnel, the smoke sensor is arranged in the tunnel, the human body sensor is arranged in the tunnel, and the jet fan is arranged at the top of the tunnel;
the control system also comprises an LED guide assembly and a management station control module which are arranged on the inner wall of the tunnel; the temperature sensor, the smoke sensor, the human body sensor, the jet fan and the LED guide assembly are all electrically connected with the management station control module;
a plurality of temperature sensor follows the axis equidistance setting in tunnel, a plurality of smoke transducer follows the axis equidistance setting in tunnel, a plurality of body sensor follows the axis equidistance setting in tunnel.
2. The tunnel traffic control system for low-grade highways according to claim 1, wherein the number of said transverse smoke discharge holes is n,
wherein->
L is the length of the tunnel, x is the set furthest escape distance, and +.>
The flat guide length required by the specification; the actual length of the local conductance is l, < >>
；
The minimum distance between each smoke discharging transverse hole and the local flat guide is 2x, and the distance between two adjacent smoke discharging transverse holes is 2x.
3. The tunnel traffic control system for a low-grade highway according to claim 2, wherein the LED guidance assembly comprises a pedestrian guidance assembly and a vehicle guidance assembly, each of which is electrically connected to the management station control module; the pedestrian guiding component is used for guiding pedestrians in the tunnel to move in the tunnel, and the vehicle guiding component is used for prompting the vehicle to run or pause.
4. A tunnel traffic control system according to claim 3, wherein said pedestrian guide assembly is disposed on a lower side wall of said tunnel and along a central axis of said tunnel, and said vehicle guide assembly is disposed on a top of said tunnel.
5. The tunnel traffic control system for low-grade highways according to claim 2, wherein the set furthest escape distance x is less than or equal to 720m and the actual length of the local average is l=1020 m.
6. Tunnel traffic control method suitable for low-grade highways, characterized in that it is based on a tunnel traffic control system according to any of claims 2-5, comprising the following steps:
s1, continuously receiving temperature data of all positions in a tunnel, which are detected by a plurality of temperature sensors, in real time by a management station control module;
s2, the management station control module judges the detection temperature of the temperature sensor, wherein the detection temperature comprises three conditions;
if the temperature is less than 40 ℃, judging that no abnormality exists, and continuing the step S1;
if the temperature is between 40 ℃ and 200 ℃, acquiring the position of the abnormal temperature, and detecting smoke through a smoke sensor; if the smoke concentration does not exceed the threshold value, continuing the step S1; if the smoke concentration exceeds the limit value, performing step S3;
if the temperature is higher than 200 ℃, performing step S3;
s3, the management station control module gives out fire disaster early warning, and the LED guide assembly is started to prevent the vehicle from entering the tunnel; simultaneously acquiring a fire position through a temperature sensor and a smoke sensor;
s4, judging the position relation between the fire position and the tunnel, and acquiring a traffic control scheme aiming at pedestrians;
s5, starting the LED guide assembly, guiding pedestrians to move in the tunnel according to the traffic control scheme, and starting the jet fan.
7. The tunnel traffic control method for a low-grade highway according to claim 6, wherein the traffic control scheme includes a smoke control stage, a traffic guiding stage, and a smoke discharging stage;
the smoke control stage comprises the following steps: after the fire position is determined, a jet fan near the fire position is started, and the symmetrical spreading of smoke is controlled;
the traffic guidance phase includes: starting the LED guide assembly and guiding the pedestrian to move to a safe position along the guide indication path;
the fume exhaust stage comprises: and starting a jet fan on the smoke discharging path and driving the smoke to be discharged along the smoke discharging path.
8. Tunneling suitable for low-grade highways according to claim 7A traffic control method is characterized in that the distance between the fire position and a tunnel portal is set as k, the length of a flat guide is set as l, and n smoke discharge transverse holes are named as 1 st smoke discharge transverse hole, 2 nd smoke discharge transverse hole, … …, i th smoke discharge transverse hole and … … th smoke discharge transverse hole in sequence from the tunnel portal to the middle part of the tunnel
A plurality of smoke discharging transverse holes;
the guiding instruction route selection in the traffic guiding stage and the smoke discharging route selection method in the smoke discharging stage are as follows:
the selection method comprises the following various situations:
case one: when k is less than l+x, the guiding indication path is directed to a local level guide from the fire position; the smoke discharging path points to the tunnel portal from the fire position;
and a second case: when (when)
＜k＜/>
The guiding indication path points to the ith smoke discharging transverse hole from the fire position and ends at the smoke-free side of the ith smoke discharging transverse hole; the smoke exhaust path is from the fire position to the ith smoke exhaust cross hole.
9. The tunnel traffic control method for a low-grade highway according to claim 8, further comprising:
s6, carrying out human body image recognition on the smoke exhaust path through a human body sensor, and if pedestrians exist in the smoke exhaust path, continuing a smoke control stage and a traffic guiding stage; if no pedestrian exists in the smoke exhaust path, the smoke exhaust stage is started.
10. The tunnel traffic control method according to claim 8, wherein the set farthest escape distance x=720m, the actual length of the partial conductance l=1020 m, the distance between the i-th smoke emission cross hole and the i+1th smoke emission cross hole is 2x, and the distance between the 1-th smoke emission cross hole and the partial conductance is 2x.
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