A highway tunnel traffic safety alarm device and alarm method

Abstract

The present invention discloses a highway tunnel traffic safety alarm device and an alarm method, belonging to the field of traffic safety technology. A highway tunnel traffic safety alarm device includes a remote alarm management terminal, an on-site alarm management terminal, a data collection mechanism in the tunnel, a data collection mechanism outside the tunnel, and a combined alarm mechanism. The combined alarm mechanism includes a fixed alarm component and a mobile alarm component, and the fixed alarm component and the mobile alarm component are both electrically connected to the on-site alarm management terminal. At the same time, an alarm method based on the above-mentioned highway tunnel traffic safety alarm device is disclosed. The above-mentioned highway tunnel traffic safety alarm device and the alarm method are used to associate the environmental differences in the tunnel, analyze the accident risks, and give early warnings. At the same time, after an accident occurs, the fixed alarm component and the mobile alarm component provide an alarm indication for the oncoming vehicle to improve safety.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic safety, and in particular to a highway tunnel traffic safety alarm device and an alarm method. Background Art

[0002] Tunnels are high-incidence areas for highway accidents due to narrow space, poor lighting conditions, and high ambient noise. At the same time, when drivers enter and exit tunnels, they are prone to traffic accidents due to sudden changes in vision and environmental factors. When a traffic accident or fire occurs in a tunnel, if the subsequent vehicles entering the tunnel are not notified in time, the rear vehicles may rear-end each other in the tunnel due to obstructed vision, smoke that cannot be dissipated in time, and failure to warn the rear drivers in time, which may lead to a secondary accident and more serious consequences.

[0003] After searching, the patent with application number CN202222085441.9 discloses a high-speed tunnel entrance control device and a secondary accident linkage warning system, including a deceleration device, which includes: a base, provided with a nozzle; a spray assembly, arranged on the base and connected to the nozzle; an oil storage assembly, which is internally provided with an oil storage tank and a water tank connected to the nozzle; a deceleration assembly, which is connected to the oil storage tank and the water tank, and is provided with a deceleration block on the surface, and is internally provided with a first piston plate and circulating hydraulic oil, and a plurality of through holes are provided on the first piston plate. Through the cooperation of the spray assembly and the deceleration assembly, the nozzle sprays mist to remind the driver to slow down, and the driver cannot ignore the mist in front of the car, and the reminder effect is good. The patent with application number CN202011334800.9 discloses an alarm and fire-fighting device for when a traffic accident occurs in a tunnel, including a tunnel wall, a tunnel cavity that passes through from front to back, and two spring cavities are respectively connected on the inner walls on the left and right sides of the tunnel cavity, and two anti-collision plates are respectively slidably provided at the left and right ends of the tunnel cavity, and the two anti-collision plates are symmetrically distributed with the center of the tunnel cavity as the symmetry center. When an accident occurs in the tunnel, the vehicle that is about to enter the tunnel can be quickly reminded to stop entering the tunnel, thereby preventing traffic jams inside the tunnel and increasing rescue difficulties, and warning of the accident site to prevent vehicles still traveling in the tunnel from causing secondary accidents due to vision problems, and facilitating rescue vehicles to quickly and accurately determine the accident site, and the fire extinguishing device performs comprehensive fire extinguishing treatment in the tunnel to avoid irreparable damage to the tunnel.

[0004] However, the prior art still has the following problems:

[0005] (1) The system only issues an alarm after an accident occurs, and does not have the function of issuing an early warning based on the actual situation. In addition, the prediction is only based on weather and traffic volume, but does not correlate the environmental differences in the tunnel, resulting in poor prediction accuracy.

[0006] (2) The measures taken after the alarm is raised are not effective. For example, the corresponding fire-fighting measures are relatively fixed in position, resulting in poor fire-fighting effects.

[0007] (3) When the traffic volume is heavy, the vehicle ahead may block the warning device, resulting in poor warning effect. At the same time, fixed mechanical shielding makes it easy for vehicles traveling at high speed to collide with the blocking device. Summary of the invention

[0008] The purpose of the present invention is to provide a highway tunnel traffic safety alarm device and an alarm method to solve the above technical problems.

[0009] To achieve the above-mentioned purpose, the present invention provides a highway tunnel traffic safety alarm device, comprising a remote alarm management terminal, an on-site alarm management terminal and a data collection mechanism in the tunnel, wherein the data collection mechanism in the tunnel is arranged in the tunnel and is electrically connected to the on-site alarm management terminal, the on-site alarm management terminal communicates with the remote alarm management terminal, and an off-tunnel data collection mechanism is also arranged, wherein both the data collection mechanism in the tunnel and the data collection mechanism outside the tunnel are connected to a risk analysis and early warning terminal, and the risk analysis and early warning terminal communicates with the on-site alarm management terminal;

[0010] A combined alarm mechanism is arranged at the entrance end of the tunnel. The combined alarm mechanism comprises a fixed alarm component and a mobile alarm component. Both the fixed alarm component and the mobile alarm component are electrically connected to the on-site alarm management terminal.

[0011] Preferably, the data collection mechanism outside the tunnel includes a flow collector for collecting the traffic flow of the highway outside the tunnel, a rain and snow transmitter, a temperature sensor outside the tunnel, and a light intensity sensor outside the tunnel;

[0012] The data collection mechanism in the tunnel includes an accident identification component, a temperature sensor in the tunnel, a light intensity sensor in the tunnel and a smoke sensor; the temperature sensor and the smoke sensor in the tunnel are both connected to the accident identification component.

[0013] The flow collector, the rain and snow transmitter, the temperature sensor outside the tunnel, the temperature sensor inside the tunnel, the light intensity sensor inside the tunnel and the light intensity sensor outside the tunnel are all electrically connected to the risk analysis and early warning terminal.

[0014] Preferably, the accident identification component includes a tunnel video collector, a speed measuring radar and an image recognition terminal, and the temperature sensor, smoke sensor, tunnel video collector and speed measuring radar in the tunnel are all connected to the image recognition terminal.

[0015] Preferably, the fixed alarm component is provided with at least one and includes an air pump, the air pump is connected to an inflatable square tube, the inflatable square tube is embedded in the road, and a plurality of pneumatic telescopic warning parts are arranged in parallel on the inflatable square tube.

[0016] Preferably, the pneumatic telescopic warning member comprises a plurality of support rings connected in sequence through flexible sealing rings, and the sizes of the support rings connected in sequence decrease in sequence;

[0017] Or the pneumatic telescopic warning piece includes a whistle and a telescopic tape fixed at the rear end of the whistle.

[0018] Preferably, the mobile alarm assembly includes a mobile trolley arranged on the guardrail, the mobile trolley is provided with an audible and visual alarm and a display, the mobile trolley communicates with the on-site alarm management terminal, the mobile trolley includes a supporting base, a wear-resistant supporting roller and an extended wheel frame are arranged below the supporting base, the extended wheel frame includes two adjusting racks slidably arranged on the supporting base, the two adjusting racks are both meshed with the connecting gear, the rotating shaft of the connecting gear is arranged on the supporting base and is provided with a first bevel gear, the first bevel gear is meshed with the second bevel gear at one end of the operating rod, the middle part of the operating rod is arranged on the supporting base through a bearing, the other end of the operating rod is provided with an operating knob, and a positioning pin is provided on the operating rotation; the two adjusting racks are respectively connected to the extension rod, a plurality of adjustment mounting holes are opened on the extension rod, an L-shaped mounting plate is provided on the extension rod, and a walking wheel frame with a driving motor is installed on the L-shaped mounting plate.

[0019] Preferably, a mobile fire protection mechanism is provided in the tunnel, and the mobile fire protection mechanism comprises a carrying trolley arranged on the guardrail in the tunnel, one side of the carrying trolley is connected with a fire tank and a lifting device through a carrying plate, and the other side of the carrying trolley is provided with an angle adjustment motor, a planetary carrier with a driving motor is provided on the output shaft of the angle adjustment motor, and a nozzle with a nozzle is provided on one of the planetary gears of the planetary carrier;

[0020] A protection component is provided at one end of the carrying trolley, and the protection component includes a transverse telescopic drive motor provided in the carrying trolley, the transverse telescopic drive motor is connected to a transverse telescopic drive gear, the transverse telescopic drive gear is meshed with a transverse telescopic rack slidably provided in the carrying trolley, a heightening plate is provided at one end of the transverse telescopic rack, a folding fire curtain is provided on the heightening plate through the steering motor, a trigger plate is provided at the other end of the transverse telescopic rack, the trigger plate is arranged opposite to the travel switch on the carrying trolley, the travel switch is arranged in series with the temperature control switch of the folding fire curtain, and a warning light is provided on the folding fire curtain;

[0021] A rear warning mechanism is arranged at one end of the carrying trolley, and the rear warning mechanism comprises an electromagnetic block and a pushing electric push rod arranged on the carrying trolley, the electromagnetic block adsorbs a sliding magnetic sleeve, a reminder lever is arranged on the sliding magnetic sleeve through a damping shaft, a reflective strip is attached to the reminder lever, a pushing wedge is arranged at the telescopic end of the pushing electric push rod, and the pushing electric push rod is arranged in series with the electromagnetic block.

[0022] Preferably, a charging mechanism is provided on the guardrail, the charging mechanism includes a charging socket fixed on the guardrail, an inclined surface is provided on one side of the charging socket, an eight-shaped guide plate is provided on the inclined surface, a plurality of circumferentially distributed protective sheets are provided on the edge of the socket of the charging socket, the protective sheets are made of silicone material, an elastic telescopic charging connector is installed on the extension rod, the elastic telescopic charging connector includes a fixed tube, a telescopic spring is provided inside the fixed tube, the telescopic spring is connected to the telescopic tube, a contact head is provided in the telescopic tube through a contact spring, and a contact spring is obliquely provided on the contact head.

[0023] An alarm method based on the above-mentioned highway tunnel traffic safety alarm device, the specific steps are as follows:

[0024] Step S1: The risk analysis and early warning terminal performs risk analysis and accident identification through real-time collected data inside and outside the tunnel, and sends the analysis results and identification information to the remote alarm management terminal through the on-site alarm management terminal. The remote management terminal remotely displays and prompts the following vehicles through the display device on the highway;

[0025] Step S2: After the accident occurs, the mobile fire protection mechanism is activated;

[0026] The accident recognition results include parking, obstacle, accident without collision, and accident with collision;

[0027] When parking, obstacles or unattended accidents occur, the rear warning component is moved to 200 meters behind the occurrence point by the trolley, and the rear warning component is activated, so that the polarity of the electromagnetic block and the sliding magnetic sleeve is the same, and the electric push rod is extended at the same time, so that the sliding magnetic sleeve is separated from the electromagnetic block and the gear lever is prompted to be pushed down;

[0028] When a train accident occurs, the trolley drives the rear warning component to move 200 meters behind the accident site, starts the rear warning component, and then continues to move the trolley to the accident site. The angle adjustment motor adjusts the inclination angle of the nozzle, and starts the drive motor and nozzle on the planetary frame at the same time, so that the inclined nozzle swings in an arc within the set angle to spray fire extinguishing materials for fire extinguishing. At the same time, the lateral telescopic drive motor and the steering motor are started. When the temperature exceeds the set temperature and smoke is detected, the trigger plate triggers the switch to open the folding fire curtain to protect the vehicles that cannot move at the rear.

[0029] Step S3: The mobile car activates the combined alarm mechanism according to the traffic conditions at the accident location;

[0030] Compare the accident range with the lane range. When the accident range is larger than half of the lane range or a train accident occurs, the traffic condition is determined to be impassable, and the fixed alarm component and the mobile alarm component are activated.

[0031] When the accident range is less than or equal to one-half of the lane range, the traffic condition is determined to be slow traffic and only the mobile alarm component is activated.

[0032] Preferably, the specific process of risk analysis is as follows:

[0033] Step S11: constructing a risk analysis model based on a hidden Markov model;

[0034] Step S12: Statistical calculation is performed on the collected historical data inside and outside the tunnel to obtain a training set and a test set, wherein the elements of the training set and the test set include the temperature difference inside and outside the tunnel, the light intensity difference inside and outside the tunnel, the amount of rain and snow, and the traffic volume;

[0035] Step S13: Statistics are collected in real time inside and outside the tunnel to obtain real-time temperature difference inside and outside the tunnel, illumination difference inside and outside the tunnel, amount of rain and snow, and traffic flow, which are input into the trained risk analysis model based on the hidden Markov model to obtain the risk coefficient.

[0036] Therefore, the present invention adopts the above-mentioned highway tunnel traffic safety alarm device and alarm method, which has the following beneficial effects:

[0037] (1) Conduct risk analysis before an accident occurs and issue early warnings to vehicles traveling on the highway. Conduct risk analysis based on the difference in the environment inside and outside the tunnel and the traffic volume to improve the accuracy of early warnings.

[0038] (2) The mobile fire protection mechanism adopts a moving and swinging method to extinguish fires, which has a good fire extinguishing effect and has the functions of rear warning and isolation protection, avoiding manual tripod and improving safety.

[0039] (3) The fixed alarm component has a pneumatic retractable warning part. When an accident occurs and entry into the tunnel is prohibited, the pneumatic retractable warning part rises, which has a good warning effect. Even if the vehicle rushes out of the fixed alarm component, it will not cause damage to the vehicle. The mobile alarm component will give a cyclic warning to avoid being blocked by the vehicle in front, and the vehicle behind can also obtain accident information in a timely manner.

[0040] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a principle block diagram of a highway tunnel traffic safety alarm device of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of a fixed alarm component in Example 1 of the present invention;

[0043] Figure 3 This is a schematic diagram of the structure of the mobile trolley of the present invention;

[0044] Figure 4 This is a schematic diagram of the operating lever structure of the present invention;

[0045] Figure 5 This is a schematic diagram of the structure of the charging socket of the present invention;

[0046] Figure 6 This is a schematic diagram of the structure of the elastic telescopic charging connector of the present invention;

[0047] Figure 7 This is a schematic diagram of the structure of the carrying trolley of the present invention;

[0048] Figure 8 This is a schematic diagram of the transverse telescopic rack structure of the present invention;

[0049] Fig. 9 It is a schematic diagram of the structure of the rear warning mechanism of the present invention;

[0050] Fig.10 This is a schematic diagram of the structure of the fixed alarm component of Example 2 of the present invention.

[0051] Reference numerals

[0052] 1. Remote alarm management terminal; 2. On-site alarm management terminal; 3. Data collection mechanism in the tunnel; 31. Accident identification component; 311. Tunnel video collector; 312. Speed ​​radar; 313. Image recognition terminal; 32. Temperature sensor in the tunnel; 33. Light sensor in the tunnel; 34. Smoke sensor; 4. Data collection mechanism outside the tunnel; 41. Flow collector; 42. Rain and snow transmitter; 43. Temperature sensor outside the tunnel; 44. Light sensor outside the tunnel; 5. Risk analysis and early warning terminal; 6. Combined alarm mechanism; 61. Fixed alarm assembly; 611. Air pump; 612. Inflatable square tube; 613. Pneumatic telescopic warning piece; 6131. ​​Flexible sealing ring; 6132. Support ring; 6133. Whistle; 6134. Telescopic tape; 62. Mobile alarm assembly; 621. Mobile trolley; 622. Sound and light alarm; 623. Display; 624. Support base; 625. Anti-wear support roller; 626. Extension rod; 627. Adjustment rack; 628. Linking gear; 629. First bevel gear; 6210. Operating lever; 6211. Second bevel gear wheel; 6212, operating knob; 6213, positioning pin; 6214, L-shaped mounting plate; 6215, walking wheel frame; 7, charging mechanism; 71, charging socket; 711, inclined surface; 712, eight-shaped guide plate; 713, protective sheet; 72, elastic telescopic charging connector; 721, fixed tube; 722, telescopic spring; 723, telescopic tube; 724, contact spring; 725, contact head; 726, contact spring; 8, mobile fire protection mechanism; 81, carrying trolley; 82, carrying plate; 83, fire tank; 84, lifting device ;85. Angle adjustment motor;86. Planetary carrier;87. Nozzle;88. Protection component;881. Lateral telescopic drive motor;882. Lateral telescopic drive gear;883. Lateral telescopic rack;884. Heightening plate;885. Steering motor;886. Folding fire curtain;887. Trigger plate;888. Temperature control switch;889. Warning light;89. Travel switch;9. Rear warning mechanism;91. Electromagnetic block;92. Push electric push rod;93. Sliding magnetic sleeve;94. Damping shaft;95. Prompt lever;96. Push wedge block. DETAILED DESCRIPTION

[0053] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0055] Example 1

[0056] like Figure 1 As shown, a highway tunnel traffic safety alarm device includes a remote alarm management terminal 1, an on-site alarm management terminal 2 and a tunnel data collection mechanism 3, wherein the tunnel data collection mechanism 3 includes an accident identification component 31, a tunnel temperature sensor 32, a tunnel light intensity sensor 33 and a smoke sensor 34; the tunnel temperature sensor 32 and the smoke sensor 34 are both connected to the accident identification component 31. The tunnel data collection mechanism 3 is arranged in the tunnel and is electrically connected to the on-site alarm management terminal 2, and the on-site alarm management terminal 2 communicates with the remote alarm management terminal 1.

[0057] A data collection mechanism 4 outside the tunnel is also provided, and the data collection mechanism 4 outside the tunnel includes a flow collector 41 for collecting the traffic flow of the highway outside the tunnel, a rain and snow transmitter 42, a temperature sensor outside the tunnel 43, and a light sensor outside the tunnel 44. The data collection mechanism 3 inside the tunnel and the data collection mechanism 4 outside the tunnel are both connected to the risk analysis and early warning terminal 5, and the risk analysis and early warning terminal 5 communicates with the on-site alarm management terminal 2. The flow collector 41, the rain and snow transmitter 42, the temperature sensor outside the tunnel 43, the temperature sensor inside the tunnel 32, the light sensor inside the tunnel 33, and the light sensor outside the tunnel 44 are all electrically connected to the risk analysis and early warning terminal 5. The accident identification component 31 includes a tunnel video collector 311, a speed radar 312, and an image recognition terminal 313, and the temperature sensor inside the tunnel 32, the smoke sensor 34, the tunnel video collector 311, and the speed radar 312 are all connected to the image recognition terminal 313. Risk assessment is not only conducted based on the traffic volume and weather outside the tunnel, but also on the light and temperature differences inside and outside the tunnel (large temperature differences will cause the front windshield to fog up easily, affecting the driver's vision and increasing the probability of accidents).

[0058] A combined alarm mechanism 6 is provided at the entrance end of the tunnel. The combined alarm mechanism 6 includes a fixed alarm component 61 and a mobile alarm component 62. Both the fixed alarm component 61 and the mobile alarm component 62 are electrically connected to the on-site alarm management terminal 2.

[0059] In this embodiment, multiple fixed alarm components 61 are arranged in parallel, such as Figure 2 As shown, the fixed alarm component 61 includes an air pump 611, which is connected to an air-filled square tube 612. The air-filled square tube 612 is embedded in the road and flush with the road surface. A plurality of pneumatic telescopic warning members 613 are arranged in parallel on the air-filled square tube 612. The pneumatic telescopic warning member 613 in this embodiment includes a plurality of support rings 6132 connected in sequence through flexible sealing rings 6131 (waterproof cloth). The sizes of the support rings 6132 connected in sequence decrease in sequence. When a vehicle is prohibited from entering a tunnel, the air pump inflates the air into the air-filled square tube 612, so that the support ring 6132 is blown up to warn and block the oncoming vehicle.

[0060] The mobile alarm assembly 62 of this embodiment includes a mobile trolley 621 disposed on the guardrail. Figure 3As shown, the mobile trolley 621 is provided with an audible and visual alarm 622 and a display 623. The mobile trolley 621 communicates with the on-site alarm management terminal 2. The mobile trolley 621 includes a support base 624. A wear-resistant support roller 625 and an extended wheel frame are provided below the support base 624. The extended wheel frame includes two adjustment racks 627 slidably arranged on the support base 624. The two adjustment racks 627 are both meshed with a linkage gear 628. The rotating shaft of the linkage gear 628 is arranged on the support base 624 and is provided with a first bevel gear 629. The first bevel gear 629 is meshed with a second bevel gear 6211 at one end of the operating rod 6210. Figure 4 As shown, the middle part of the operating rod 6210 is set on the support base 624 through a bearing, and an operating knob 6212 is set at the other end of the operating rod 6210, and a positioning pin 6213 is set on the operating rotation; two adjustment racks 627 are respectively connected to extension rods 626, and a plurality of adjustment mounting holes are opened on the extension rods 626. An L-shaped mounting plate 6214 is set on the extension rod 626, and a walking wheel frame 6215 with a driving motor is installed on the L-shaped mounting plate 6214.

[0061] In this embodiment, a mobile fire protection mechanism 8 is provided in the tunnel. The mobile fire protection mechanism 8 includes a carrying trolley 81 provided on the guardrail in the tunnel. Figure 7 As shown, a fire tank 83 and a lifting device 84 are connected to the carrying plate 82 on one side of the carrying trolley 81, and an angle adjustment motor 85 is provided on the other side of the carrying trolley 81. A planetary carrier 86 with a driving motor is provided on the output shaft of the angle adjustment motor 85, and a nozzle 87 with a nozzle is provided on one of the planetary gears of the planetary carrier 86. A protection component 88 is provided at one end of the carrying trolley 81, and the protection component 88 includes a transverse telescopic driving motor 881 provided in the carrying trolley 81, and the transverse telescopic driving motor 881 is connected to a transverse telescopic driving gear 882, and the transverse telescopic driving gear 882 is meshed with a transverse telescopic rack 883 slidably provided in the carrying trolley 81, and a heightening plate 884 is provided at one end of the transverse telescopic rack 883, and a folding fire curtain 886 is provided on the heightening plate 884 through a steering motor 885, and a trigger plate 887 is provided at the other end of the transverse telescopic rack 883, as shown in FIG. Figure 8 As shown, the trigger plate 887 is arranged opposite to the travel switch 89 on the carrying trolley 81 , the travel switch 89 is arranged in series with the temperature control switch 888 of the folding fire curtain 886 , and a warning light 889 is arranged on the folding fire curtain 886 .

[0062] like Fig. 9As shown, a rear warning mechanism 9 is provided at one end of the carrying cart 81, and the rear warning mechanism 9 includes an electromagnetic block 91 and a pushing electric push rod 92 arranged on the carrying cart 81, the electromagnetic block 91 adsorbs a sliding magnetic sleeve 93, and a reminder lever 95 is provided on the sliding magnetic sleeve 93 through a damping shaft 94, and a reflective strip is attached to the reminder lever, and a pushing wedge block 96 is provided at the telescopic end of the pushing electric push rod 92, and the pushing electric push rod 92 is arranged in series with the electromagnetic block 91.

[0063] The guardrail is provided with a charging mechanism 7 for charging the mobile trolley 621 and the carrying trolley 81 respectively. Figure 5 and Figure 6 The charging mechanism 7 includes a charging socket 71 fixed on the guardrail, an inclined surface 711 is provided on one side of the charging socket 71, an eight-shaped guide plate 712 is provided on the inclined surface 711, a plurality of circumferentially distributed protective sheets 713 are provided on the edge of the socket of the charging socket 71, the protective sheets 713 are made of silicone, an elastic telescopic charging connector 72 is installed on the extension rod 626, and the elastic telescopic charging connector 72 includes a fixed tube 721, a telescopic spring 722 is provided inside the fixed tube 721, the telescopic spring 722 is connected to the telescopic tube 723, a contact head 725 is provided in the telescopic tube 723 through a contact spring 724, and a contact spring 726 is provided obliquely on the contact head 725.

[0064] An alarm method of the above-mentioned highway tunnel traffic safety alarm device comprises the following specific steps:

[0065] Step S1: The risk analysis and early warning terminal 5 performs risk analysis and accident identification through real-time data collected inside and outside the tunnel, and sends the analysis results and identification mechanism to the remote alarm management terminal 1 through the on-site alarm management terminal 2. The remote management terminal remotely displays the remote prompts to subsequent vehicles through the display device on the highway.

[0066] The specific process of risk analysis is as follows:

[0067] Step S11: constructing a risk analysis model based on a hidden Markov model;

[0068] Step S12: Statistical calculation is performed on the collected historical data inside and outside the tunnel to obtain a training set and a test set, wherein the elements of the training set and the test set include the temperature difference inside and outside the tunnel, the light intensity difference inside and outside the tunnel, the amount of rain and snow, and the traffic volume;

[0069] Step S13: Statistics are collected in real time inside and outside the tunnel to obtain real-time temperature difference inside and outside the tunnel, illumination difference inside and outside the tunnel, amount of rain and snow, and traffic flow, which are input into the trained risk analysis model based on the hidden Markov model to obtain the risk coefficient.

[0070] Step S2: After the accident occurs, the mobile fire protection mechanism 8 is activated.

[0071] The accident identification results include parking, obstacle, non-traffic accident and traffic accident (accident type identification belongs to the existing technology and will not be described in detail here).

[0072] When parking, an obstacle or an accident without a train occurs, the carrying trolley 81 drives the rear warning component to move 200 meters behind the occurrence point, and starts the rear warning component, so that the polarity of the electromagnetic block 91 and the sliding magnetic sleeve 93 are the same, and at the same time, the electric push rod 92 is pushed out, so that the sliding magnetic sleeve 93 is separated from the electromagnetic block 91 and the gear lever is prompted to be pushed down.

[0073] When a train accident occurs, the carrying trolley 81 drives the rear warning component to move 200 meters behind the occurrence point, starts the rear warning component, and then the carrying trolley 81 continues to move to the accident location, adjusts the inclination angle of the nozzle 87 through the angle adjustment motor 85, and starts the drive motor and nozzle on the planetary frame 86 at the same time, so that the inclined nozzle 87 swings in an arc within the set angle to spray fire extinguishing materials for fire extinguishing, and starts the transverse telescopic drive motor 881 and the steering motor 885 at the same time. When the temperature exceeds the set temperature and smoke is detected, the trigger plate 887 is triggered to form a switch, and the folding fire curtain 886 is opened to protect the vehicle that is located at the rear and cannot move.

[0074] Step S3: The mobile car 621 activates the combined alarm mechanism according to the traffic conditions at the accident location.

[0075] According to the comparison between the accident range and the lane range, when the accident range is larger than half of the lane range or a train accident occurs, it is determined that the traffic condition is impassable, and the fixed alarm component 61 and the mobile alarm component 62 are activated;

[0076] When the accident range is less than or equal to one-half of the lane range, the traffic condition is determined to be slow traffic, and only the mobile alarm component 62 is activated.

[0077] Example 2

[0078] The difference between this embodiment and embodiment 1 is that the structure of the pneumatic telescopic warning member 613 is different, such as Fig.10 As shown, the pneumatic telescopic warning member 613 includes a whistle 6133 and a telescopic belt 6134 fixed at the rear end of the whistle 6133, which warns oncoming vehicles. When the oncoming vehicle rushes out of the pneumatic telescopic warning member 613 at a high speed, it will not affect the next use of the pneumatic telescopic warning member 613, and will not cause damage to the vehicle body.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A highway tunnel traffic safety alarm device, comprising a remote alarm management terminal, an on-site alarm management terminal and a tunnel data collection mechanism, wherein the tunnel data collection mechanism is arranged in the tunnel and is electrically connected to the on-site alarm management terminal, and the on-site alarm management terminal communicates with the remote alarm management terminal, characterized in that: A data collection mechanism outside the tunnel is also provided, and both the data collection mechanism inside the tunnel and the data collection mechanism outside the tunnel are connected to the risk analysis and early warning terminal, and the risk analysis and early warning terminal communicates with the on-site alarm management terminal; A combined alarm mechanism is provided at the entrance end of the tunnel, and the combined alarm mechanism includes a fixed alarm component and a mobile alarm component, and both the fixed alarm component and the mobile alarm component are electrically connected to the on-site alarm management terminal; The mobile alarm assembly includes a mobile trolley arranged on the guardrail, the mobile trolley is provided with an audible and visual alarm and a display, the mobile trolley communicates with the on-site alarm management terminal, the mobile trolley includes a supporting base, a wear-resistant supporting roller and an extended wheel frame are arranged below the supporting base, the extended wheel frame includes two adjusting racks slidably arranged on the supporting base, the two adjusting racks are both meshed with the linkage gear, the rotating shaft of the linkage gear is arranged on the supporting base and is provided with a first bevel gear, the first bevel gear is meshed with the second bevel gear at one end of the operating rod, the middle part of the operating rod is arranged on the supporting base through a bearing, an operating knob is arranged at the other end of the operating rod, and a positioning pin is arranged on the operating rotation; the two adjusting racks are respectively connected to the extension rod, a plurality of adjustment mounting holes are opened on the extension rod, an L-shaped mounting plate is arranged on the extension rod, and a walking wheel frame with a driving motor is installed on the L-shaped mounting plate.

2. A highway tunnel traffic safety alarm device according to claim 1, characterized in that: The data collection mechanism outside the tunnel includes a flow collector for collecting the traffic volume of the highway outside the tunnel, a rain and snow transmitter, a temperature sensor outside the tunnel, and a light intensity sensor outside the tunnel; The data collection mechanism in the tunnel includes an accident identification component, a temperature sensor in the tunnel, a light intensity sensor in the tunnel, and a smoke sensor; the temperature sensor in the tunnel and the smoke sensor are both connected to the accident identification component; The flow collector, the rain and snow transmitter, the temperature sensor outside the tunnel, the temperature sensor inside the tunnel, the light intensity sensor inside the tunnel and the light intensity sensor outside the tunnel are all electrically connected to the risk analysis and early warning terminal.

3. A highway tunnel traffic safety alarm device according to claim 2, characterized in that: The accident identification components include a tunnel video collector, a speed measuring radar and an image recognition terminal. The temperature sensor, smoke sensor, tunnel video collector and speed measuring radar in the tunnel are all connected to the image recognition terminal.

4. A highway tunnel traffic safety alarm device according to claim 3, characterized in that: The fixed alarm component is provided with at least one and includes an air pump, the air pump is connected to an air-filled square tube, the air-filled square tube is embedded on the road, and a plurality of pneumatic telescopic warning pieces are arranged in parallel on the air-filled square tube.

5. A highway tunnel traffic safety alarm device according to claim 4, characterized in that: The pneumatic telescopic warning member comprises a plurality of supporting rings connected in sequence through flexible sealing rings, and the sizes of the supporting rings connected in sequence decrease in sequence; Or the pneumatic telescopic warning piece includes a whistle and a telescopic tape fixed at the rear end of the whistle.

6. A highway tunnel traffic safety alarm device according to claim 5, characterized in that: A mobile fire protection mechanism is provided in the tunnel, and the mobile fire protection mechanism includes a carrying trolley provided on the guardrail in the tunnel, one side of the carrying trolley is connected with a fire tank and a lifting device through a carrying plate, and the other side of the carrying trolley is provided with an angle adjustment motor, a planetary frame with a driving motor is provided on the output shaft of the angle adjustment motor, and a nozzle with a nozzle is provided on one of the planetary gears of the planetary frame; A protection component is provided at one end of the carrying trolley, and the protection component includes a transverse telescopic drive motor provided in the carrying trolley, the transverse telescopic drive motor is connected to a transverse telescopic drive gear, the transverse telescopic drive gear is meshed with a transverse telescopic rack slidably provided in the carrying trolley, a heightening plate is provided at one end of the transverse telescopic rack, a folding fire curtain is provided on the heightening plate through the steering motor, a trigger plate is provided at the other end of the transverse telescopic rack, the trigger plate is arranged opposite to the travel switch on the carrying trolley, the travel switch is arranged in series with the temperature control switch of the folding fire curtain, and a warning light is provided on the folding fire curtain; A rear warning mechanism is arranged at one end of the carrying trolley, and the rear warning mechanism comprises an electromagnetic block and a pushing electric push rod arranged on the carrying trolley, the electromagnetic block adsorbs a sliding magnetic sleeve, a reminder lever is arranged on the sliding magnetic sleeve through a damping shaft, a reflective strip is attached to the reminder lever, a pushing wedge is arranged at the telescopic end of the pushing electric push rod, and the pushing electric push rod is arranged in series with the electromagnetic block.

7. A highway tunnel traffic safety alarm device according to claim 6, characterized in that: A charging mechanism is arranged on the guardrail, and the charging mechanism comprises a charging socket fixed on the guardrail, an inclined surface is arranged on one side of the charging socket, an eight-shaped guide plate is arranged on the inclined surface, a plurality of circumferentially distributed protective sheets are arranged on the edge of the socket of the charging socket, and the protective sheets are made of silicone material; an elastic telescopic charging connector is installed on the extension rod, and the elastic telescopic charging connector comprises a fixed tube, a telescopic spring is arranged inside the fixed tube, the telescopic spring is connected to the telescopic tube, a contact head is arranged in the telescopic tube through a contact spring, and a contact spring is arranged obliquely on the contact head.

8. An alarm method based on the highway tunnel traffic safety alarm device according to claim 7, characterized in that: The specific steps are as follows: Step S1: The risk analysis and early warning terminal performs risk analysis and accident identification through real-time collected data inside and outside the tunnel, and sends the analysis results and identification information to the remote alarm management terminal through the on-site alarm management terminal. The remote management terminal remotely displays and prompts the following vehicles through the display device on the highway; Step S2: After the accident occurs, the mobile fire protection mechanism is activated; The accident recognition results include parking, obstacle, accident without collision, and accident with collision; When parking, obstacles or unattended accidents occur, the rear warning component is moved to 200 meters behind the occurrence point by the trolley, and the rear warning component is activated, so that the polarity of the electromagnetic block and the sliding magnetic sleeve is the same, and the electric push rod is extended at the same time, so that the sliding magnetic sleeve is separated from the electromagnetic block and the gear lever is prompted to be pushed down; When a train accident occurs, the trolley drives the rear warning component to move 200 meters behind the accident site, starts the rear warning component, and then continues to move the trolley to the accident site. The angle adjustment motor adjusts the inclination angle of the nozzle, and starts the drive motor and nozzle on the planetary frame at the same time, so that the inclined nozzle swings in an arc within the set angle to spray fire extinguishing materials for fire extinguishing. At the same time, the lateral telescopic drive motor and the steering motor are started. When the temperature exceeds the set temperature and smoke is detected, the trigger plate triggers the switch to open the folding fire curtain to protect the vehicles that cannot move at the rear. Step S3: The mobile car activates the combined alarm mechanism according to the traffic conditions at the accident location; Compare the accident range with the lane range. When the accident range is larger than half of the lane range or a train accident occurs, the traffic condition is determined to be impassable, and the fixed alarm component and the mobile alarm component are activated. When the accident range is less than or equal to one-half of the lane range, the traffic condition is determined to be slow traffic and only the mobile alarm component is activated.

9. An alarm method according to claim 8, characterized in that: The specific process of risk analysis is as follows: Step S11: constructing a risk analysis model based on a hidden Markov model; Step S12: Statistical calculation is performed on the collected historical data inside and outside the tunnel to obtain a training set and a test set, wherein the elements of the training set and the test set include the temperature difference inside and outside the tunnel, the light intensity difference inside and outside the tunnel, the amount of rain and snow, and the traffic volume; Step S13: Statistics are collected in real time inside and outside the tunnel to obtain real-time temperature difference inside and outside the tunnel, illumination difference inside and outside the tunnel, amount of rain and snow, and traffic flow, which are input into the trained risk analysis model based on the hidden Markov model to obtain the risk coefficient.

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