Intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas

Abstract

The present invention relates to the field of monitoring technology for hazardous chemical transport vehicles in highway service areas, and in particular to an intelligent monitoring and early warning system for hazardous chemical transport vehicles in highway service areas. The intelligent monitoring and early warning system for hazardous chemical transport vehicles in highway service areas specifically includes the following modules: an image acquisition module, which is used to acquire images of all vehicles entering the service area and transmit the images to a hazardous chemical transport vehicle identification module; a hazardous chemical transport vehicle identification module, which automatically identifies hazardous chemical transport vehicles entering the service area through an image comparison algorithm based on license plate information, vehicle external identification and hazardous goods signs; a parking guidance module, which receives the identification result of the hazardous chemical transport vehicle identification module and guides the hazardous chemical transport vehicle to a designated parking area through a ground guidance system. Based on the above-mentioned multiple functional modules, the present invention can realize intelligent management and early warning of hazardous chemical transport vehicles, and timely identify and control potential risks.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring hazardous chemicals transport vehicles in highway service areas, and in particular to an intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas. Background Art

[0002] With the rapid expansion of the highway network, the number of vehicles transporting hazardous chemicals has increased significantly, and existing safety hazards have gradually been exposed. Especially in service areas, the parking and accident handling of hazardous chemical transport vehicles face many challenges. If an emergency such as a leak occurs, it may lead to a serious safety accident. At present, existing technologies have failed to achieve intelligent management and early warning of hazardous chemical transport vehicles, and are unable to identify and control potential risks in a timely manner.

[0003] Most of the transported items of hazardous chemicals transport vehicles are liquid or gaseous. There are some problems when detecting leaks in parked hazardous chemicals transport vehicles. First, if gas leaks are detected by gas sensors, because gas sensors have a lower detection limit and are affected by the placement position, gas sensors cannot effectively monitor gas leaks below the lower detection limit and when the leak location is far away from the gas sensor. These missed gases (such as liquefied petroleum gas) often have a high density, and it is necessary to prevent weak leaked gases from accumulating in low places to create dangers.

[0004] For the leakage of liquid hazardous chemicals, visual treatment solutions still cannot provide good leakage detection when facing basically transparent liquids. The leaked liquid needs to be handled as early as possible, that is, an effective alarm should be issued before the leaked liquid leaks and accumulates on a large scale, so that early warning can be achieved in a timely and effective manner.

[0005] Therefore, in response to the above problems, an intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an intelligent monitoring and early warning system for hazardous chemical transport vehicles in highway service areas, which can prevent the accumulation of weak gases missed by gas sensors due to their high density, and can provide timely and effective early warning for the leakage of liquid hazardous chemicals.

[0007] To achieve the above purpose, the present invention provides the following technical solution: an intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas, specifically including the following modules:

[0008] An image acquisition module is used to collect images of all vehicles entering the service area and transmit them to the hazardous chemicals transport vehicle identification module;

[0009] The hazardous chemicals transport vehicle identification module automatically identifies hazardous chemicals transport vehicles entering the service area through an image comparison algorithm based on license plate information, vehicle external identification and hazardous goods signs;

[0010] The parking guidance module receives the identification result of the hazardous chemicals transport vehicle identification module and guides the hazardous chemicals transport vehicle to the designated parking area through the ground guidance system;

[0011] The leakage detection module is installed in the dedicated parking area to conduct all-round inspections on the parked hazardous chemical transport vehicles to determine whether there is a chemical leak;

[0012] Real-time warning module: If the leakage detection module detects an abnormal situation, it will automatically trigger the sound and light alarm in the service area and send a warning message to the management center.

[0013] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemical transport vehicles in highway service areas of the present invention, the intelligent monitoring and early warning system also includes an entry and exit and residence time monitoring module, which records the time when hazardous chemical transport vehicles enter the service area, the time when hazardous chemical transport vehicles leave the service area, and the parking location of hazardous chemical transport vehicles, and reminds to check if the residence time is too long;

[0014] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemical transport vehicles in highway service areas of the present invention, the intelligent monitoring and early warning system also includes an illegal road-going alarm module. According to current relevant regulations, hazardous chemical transport vehicles are strictly prohibited from passing through the highway between 0:00 and 6:00 in the morning. If a parked hazardous chemical transport vehicle leaves the service area and drives on the highway during this time period, an alarm will be issued and the information will be reported to the service area administrator and the traffic police department at the same time.

[0015] Based on the above multiple functional modules, the present invention can realize intelligent management and early warning of hazardous chemicals transportation vehicles, and timely identify and control potential risks;

[0016] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemical transport vehicles in highway service areas of the present invention, the highway service area is provided with a dedicated parking area, and in the leakage detection module, a monitoring camera is provided at the dedicated parking area, and the dedicated parking area includes second grid plates arranged at intervals, and each second grid plate is provided with a plurality of elastic rods arranged at intervals, and a gas sensor for detecting leaked gas is fixedly connected to the top of the elastic rod, and a parking space for a single hazardous chemical transport vehicle is provided between two adjacent second grid plates, and the second grid plates are paved and removable, and a slope is provided in the middle of the parking space, and a chute is provided on the slope, and the chute extends to the inner side of the outer edge of the second grid plate, and the chute is slightly lower than the surface of the slope to play a role in drainage;

[0017] The bottom end of the second grid plate is an empty groove, and the side of the empty groove close to the parking space is rotatably connected to a ring through a rotating shaft. The top of the ring is fixedly connected to inclined plates arranged in front and behind. In the initial state, the inclined plate is in a horizontal state, and a tilt sensor is fixedly connected to the inclined plate. The inclined plate is made of lightweight plastic material. When liquid leaks in a hazardous chemical transport vehicle, the liquid can drip onto the inclined plate along the chute, destroying the balance of the inclined plate, and the inclined plate will tilt, thereby realizing sensitive detection of liquid leakage.

[0018] Under the above setting, fixed structures such as shelters are also provided on the dedicated parking area to prevent sun exposure and rain. When a liquid leaks, the leakage detection module of the present invention only needs a small amount of leakage to detect the occurrence of the leak, and avoids the problem that the existing visual detection cannot provide a good visual leakage detection effect when facing a basically transparent liquid. At the same time, it can effectively alarm before the leaked liquid leaks and accumulates on a large scale, realizing timely and effective early warning;

[0019] When liquid leaks, the liquid will fall into the groove in the inclined plate under the action of the slope and the chute, the original state of the inclined plate will be broken, and the inclined plate will suddenly tilt. This tilt change will be sensed by the tilt sensor, thereby realizing sensitive detection of liquid leakage. The inclined plate rotates around the center of the rotating shaft of the ring. The front and rear sides of the inclined plate are lever mechanisms. When any side changes, the change of the inclined plate is more sensitive. In order to reduce the interference of the detection through the inclined plate, the inclined plate can be set to a closed state with a top opening. After the inclined plate detects a fault, the inclined plate can be cleaned and reset by opening the second grid plate;

[0020] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas of the present invention, a groove for temporary storage is provided on the inclined plate.

[0021] The groove is used for temporary storage of dripping liquid on the tilting plate, which facilitates the tilting plate to achieve effective detection;

[0022] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas of the present invention, a flange is fixedly connected to the front and rear middle positions of the slope, and the front and rear sides of the flange are inclined to guide the leaked liquid in the middle position into a nearby chute to prevent the liquid from dripping into the middle position of the inclined plate.

[0023] Under the above setting, the present invention relies on the inclination of the inclined plate to realize liquid leakage detection. When the liquid drips on the middle position of the inclined plate, the inclination of the inclined plate changes very little. To avoid this phenomenon, the present invention is provided with a flange, and the front and rear sides of the flange are inclined, which is used to guide the leaked liquid in the middle position into the nearby chute to prevent the liquid from dripping into the middle position of the inclined plate;

[0024] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas of the present invention, an air outlet pipe is arranged underground in the dedicated parking area, and the air outlet pipe is connected to the inner side of each empty slot through an exhaust port. When the air outlet pipe exhausts air, it can take away the weak leaked gas accumulated on the surface of the dedicated parking area, play a role in timely ventilation, and is used to prevent the accumulation of leaked gas and reduce the occurrence of danger;

[0025] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas of the present invention, an explosion-proof electric valve is provided on the air outlet pipe for closing the air outlet pipe when a dangerous situation occurs.

[0026] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas of the present invention, the air outlet pipe is connected to a forced ventilation fan.

[0027] Fans are used to achieve forced ventilation in dedicated parking areas;

[0028] As a preferred embodiment of the intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas of the present invention, an identification camera is provided at the entrance of the service area, and a first mesh plate is provided at the entrance of the service area. An exhaust groove is opened at the bottom end of the first mesh plate, and an exhaust pipe is connected to the exhaust groove. The exhaust pipe is connected to the air outlet pipe. When a vehicle passes through the first mesh plate at the entrance of the service area, negative pressure will be generated in the exhaust groove, thereby realizing the exhaust operation of the air outlet pipe.

[0029] In order to reduce energy consumption, the present invention also provides a ventilation method for a special parking area, which realizes ventilation by utilizing the suction force generated by the vehicle during driving. The present invention also provides a first mesh plate at the entrance of the service area, and an exhaust groove is provided at the bottom end of the first mesh plate. An exhaust pipe is connected to the exhaust groove, and the exhaust pipe is connected to the air outlet pipe. When the vehicle passes through the first mesh plate at the entrance of the service area, negative pressure will be generated in the exhaust groove, thereby realizing the exhaust operation of the air outlet pipe.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The intelligent monitoring and early warning system for hazardous chemical transport vehicles in the highway service area specifically includes the following modules: an image acquisition module, which is used to collect images of all vehicles entering the service area and transmit them to the hazardous chemical transport vehicle identification module; a hazardous chemical transport vehicle identification module, which automatically identifies hazardous chemical transport vehicles entering the service area through an image comparison algorithm based on license plate information, vehicle external identification and hazardous goods signs; a parking guidance module, which receives the identification results of the hazardous chemical transport vehicle identification module and guides the hazardous chemical transport vehicle to the designated parking area through the ground guidance system; a leakage detection module, which is set in a dedicated parking area, performs all-round detection of parked hazardous chemical transport vehicles to determine whether there is a chemical leak; a real-time early warning module, which automatically triggers the service if the leakage detection module detects an abnormality The intelligent monitoring and early warning system also includes an entry and exit and residence time monitoring module, which records the time when hazardous chemicals transport vehicles enter the service area, the time when hazardous chemicals transport vehicles leave the service area, and the parking location of hazardous chemicals transport vehicles. If the residence time is too long, a reminder is issued to check. The intelligent monitoring and early warning system also includes an illegal road alarm module. According to the current relevant regulations, hazardous chemical transport vehicles are strictly prohibited from passing through the highway between 0:00 and 6:00 in the morning. If a parked hazardous chemical transport vehicle leaves the service area and drives on the highway during this period, an alarm will be issued and the information will be reported to the service area administrator and the traffic police department at the same time. Based on the above-mentioned multiple functional modules, the present invention can realize intelligent management and early warning of hazardous chemical transport vehicles, and timely identify and control potential risks.

[0032] 2. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in the highway service area is also equipped with fixed structures such as sheds in the dedicated parking area to prevent sun exposure and rain. When a liquid leak occurs, the leakage detection module in the present invention only needs a small amount of leakage to detect the leakage, and avoids the problem that the existing visual detection cannot provide a good visual leakage detection effect when facing basically transparent liquids. At the same time, it can effectively alarm before the leaked liquid leaks and accumulates on a large scale, thereby realizing timely and effective early warning.

[0033] 3. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in the highway service area. When liquid leaks, the liquid will fall into the groove in the inclined plate under the action of the slope and the chute. The original state of the inclined plate will be broken, and the inclined plate will suddenly tilt. This tilt change will be sensed by the tilt sensor, thereby realizing sensitive detection of liquid leakage. The inclined plate rotates around the center of the rotating axis of the ring. The front and rear sides of the inclined plate are lever mechanisms. When there is a change on either side, the change of the inclined plate is more sensitive. In order to reduce interference with the detection through the inclined plate, the inclined plate can be set to a closed state with a top opening. After the inclined plate detects a fault, the inclined plate can be cleaned and reset by opening the second grid plate.

[0034] 4. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in the highway service area has a groove for temporary storage of liquid dripping on the inclined plate, which is convenient for the inclined plate to realize effective detection. The present invention relies on the inclination of the inclined plate to realize liquid leakage detection. When liquid drips on the middle position of the inclined plate, the inclination of the inclined plate changes very little. To avoid this phenomenon, the present invention is provided with a flange, and the front and rear sides of the flange are inclined to guide the leaked liquid in the middle position into a nearby chute to prevent the liquid from dripping into the middle position of the inclined plate.

[0035] 5. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in the highway service area, in order to reduce energy consumption, the present invention also provides a ventilation method for the special parking area, which realizes ventilation by utilizing the suction force brought by the vehicle during driving. The present invention also provides a first mesh plate at the entrance of the service area, and an exhaust groove is provided at the bottom end of the first mesh plate, and an exhaust pipe is connected to the exhaust groove, and the exhaust pipe is connected to the air outlet pipe. When the vehicle passes the first mesh plate at the entrance of the service area, negative pressure will be generated in the exhaust groove, thereby realizing the exhaust operation of the air outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the leakage detection module of the present invention;

[0037] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-sectional structure of AA';

[0038] Figure 3 For the present invention Figure 1 Schematic diagram of the cross-sectional structure of BB';

[0039] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at C;

[0040] Figure 5 This is a schematic diagram of the structure of one of the parking spaces in the special parking area for hazardous chemical vehicles of the present invention;

[0041] Figure 6 It is a schematic diagram of the installation structure of the empty slot in the front and rear directions of the present invention;

[0042] Figure 7 It is a schematic diagram of the appearance structure of the inclined plate of the present invention.

[0043] In the figure: 1. Expressway service area; 2. Service area entrance; 3. Identification camera; 4. First grid plate; 5. Surveillance camera; 6. Special parking area; 7. Slope; 71. Slide; 72. Flange; 8. Elastic rod; 9. Second grid plate; 10. Gas sensor; 11. Dangerous chemicals transport vehicle; 12. Empty slot; 13. Air outlet pipe; 14. Explosion-proof electric valve; 15. Tilt sensor; 16. Exhaust pipe; 17. Exhaust slot; 18. Tilt plate; 181. Groove; 181. Groove; 19. Ring; 20. Exhaust port; 21. Fan;

[0044] In the figure, the X-axis is the left-right direction, and the arrow direction is right; the Y-axis is the up-down direction, and the arrow direction is upward; and the Z-axis is the front-back direction, and the arrow direction is front. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Embodiment 1, the present invention provides a technical solution: an intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas, specifically comprising the following modules:

[0047] An image acquisition module is used to collect images of all vehicles entering the service area and transmit them to the hazardous chemicals transport vehicle identification module;

[0048] The hazardous chemicals transport vehicle identification module automatically identifies hazardous chemicals transport vehicles entering the service area through an image comparison algorithm based on license plate information, vehicle external identification and hazardous goods signs;

[0049] The parking guidance module receives the identification result of the hazardous chemicals transport vehicle identification module and guides the hazardous chemicals transport vehicle to the designated parking area through the ground guidance system;

[0050] The leakage detection module is installed in the dedicated parking area to conduct all-round inspections on the parked hazardous chemical transport vehicles to determine whether there is a chemical leak;

[0051] Real-time warning module: If the leakage detection module detects an abnormal situation, it will automatically trigger the sound and light alarm in the service area and send a warning message to the management center.

[0052] Specifically, the intelligent monitoring and early warning system also includes an entry and exit and residence time monitoring module, which records the time when hazardous chemical transport vehicles enter the service area, the time when hazardous chemical transport vehicles leave the service area, and the parking location of hazardous chemical transport vehicles, and reminds them to check if they stay too long;

[0053] Specifically, the intelligent monitoring and early warning system also includes an illegal road driving alarm module. According to current relevant regulations, vehicles transporting hazardous chemicals are strictly prohibited from entering the highway between 0:00 and 6:00 in the morning. If a parked vehicle transporting hazardous chemicals leaves the service area and drives on the highway during this time period, an alarm will be sounded and the information will be reported to the service area administrator and traffic police department at the same time.

[0054] Based on the above-mentioned multiple functional modules, the present invention can realize intelligent management and early warning of hazardous chemicals transportation vehicles, and timely identify and control potential risks.

[0055] Example 2: This example is a further improvement of Example 1. Figure 1 , Figure 2 and Figure 4-Figure 7 The expressway service area 1 is provided with a dedicated parking area 6. In the leakage detection module, a monitoring camera 5 is provided at the dedicated parking area 6. The dedicated parking area 6 includes second grid plates 9 arranged at intervals. Each second grid plate 9 is provided with a plurality of elastic rods 8 arranged at intervals. The top of the elastic rod 8 is fixedly connected with a gas sensor 10 for detecting leaked gas. Between two adjacent second grid plates 9 is a parking space for a single hazardous chemical transport vehicle 11. The second grid plate 9 is paved and the second grid plate 9 is detachable. A slope 7 is provided in the middle of the parking space. A chute 71 is provided on the slope 7. The chute 71 extends to the inner side of the outer edge of the second grid plate 9. The chute 71 is slightly lower than the surface of the slope 7 to play a role in drainage.

[0056] The bottom end of the second grid plate 9 is an empty groove 12, and the empty groove 12 is rotatably connected to a ring 19 on one side close to the parking space through a rotating shaft. The top of the ring 19 is fixedly connected to inclined plates 18 arranged in front and behind. In the initial state, the inclined plate 18 is in a horizontal state, and a tilt sensor 15 is fixedly connected to the inclined plate 18. The inclined plate 18 is made of lightweight plastic material. When liquid leaks from the hazardous chemicals transport vehicle 11, the liquid can drip onto the inclined plate 18 along the chute 71, destroying the balance of the inclined plate 18, and the inclined plate 18 will tilt, thereby realizing sensitive detection of liquid leakage.

[0057] Under the above setting, fixed structures such as shelters are also provided on the dedicated parking area 6 to prevent sun exposure and rain. When liquid leakage occurs, the leakage detection module of the present invention only needs a small amount of leakage to detect the occurrence of leakage, and avoids the problem that the existing visual detection cannot provide a good visual leakage detection effect when facing basically transparent liquids. At the same time, it can effectively alarm before the leakage of the leaked liquid accumulates in a large area, realizing timely and effective early warning;

[0058] When liquid leaks, the liquid will fall into the groove in the inclined plate 18 under the action of the slope 7 and the chute 71, the original state of the inclined plate 18 will be broken, and the inclined plate 18 will suddenly change its tilt. This tilt change will be sensed by the tilt sensor 15, thereby realizing sensitive detection of liquid leakage. The inclined plate 18 rotates around the center of the rotating shaft of the ring 19. The front and rear sides of the inclined plate 18 are lever mechanisms. When any side changes, the change of the inclined plate 18 is more sensitive. In order to reduce the interference of the detection by the inclined plate 18, the inclined plate 18 can be set to a closed state with a top opening. After the inclined plate 18 detects a fault, the inclined plate 18 can be cleaned and reset by opening the second grid plate 9;

[0059] The multi-point distributed gas sensors 10 are used to detect gas leaks;

[0060] Specifically, a groove 181 for temporary storage is formed on the inclined plate 18 .

[0061] The groove 181 is used for temporary storage of the liquid dripping on the tilting plate 18, so as to facilitate the tilting plate 18 to realize effective detection;

[0062] Specifically, a flange 72 is fixedly connected to the front and rear middle position of the ramp 7 , and the front and rear sides of the flange 72 are inclined to guide the leaked liquid in the middle position into the nearby chute 71 to prevent the liquid from dripping into the middle position of the inclined plate 18 .

[0063] Under the above setting, the present invention relies on the inclination of the inclined plate 18 to realize liquid leakage detection. When liquid drops on the middle position of the inclined plate 18, the inclination of the inclined plate 18 changes very little. To avoid this phenomenon, the present invention is provided with a flange 72, and the front and rear sides of the flange 72 are inclined, which is used to guide the leaked liquid in the middle position into the nearby slide 71 to prevent the liquid from dripping into the middle position of the inclined plate 18.

[0064] Example 3: This example is a further improvement of Example 1. Figure 1-7Specifically, an air outlet 13 is provided underground in the dedicated parking area 6, and the air outlet 13 is connected to the inner side of each empty slot 12 through an air outlet 20. When the air outlet 13 exhausts air, it can take away the weak leaked gas accumulated on the surface of the dedicated parking area 6, play a role in timely ventilation, and is used to prevent the accumulation of leaked gas and reduce the occurrence of danger;

[0065] Specifically, an explosion-proof electric valve 14 is provided on the air outlet pipe 13 for closing the air outlet pipe 13 when a dangerous situation occurs.

[0066] Specifically, the air outlet pipe 13 is connected to a forced ventilation fan 21 .

[0067] The fan 21 is used to realize the forced ventilation of the dedicated parking area 6;

[0068] Specifically, an identification camera 3 is provided at the entrance 2 of the service area, and a first mesh plate 4 is provided at the entrance 2 of the service area. An exhaust groove 17 is provided at the bottom end of the first mesh plate 4. An exhaust pipe 16 is connected to the exhaust groove 17. The exhaust pipe 16 is connected to the air outlet pipe 13. When a vehicle passes through the first mesh plate 4 at the entrance 2 of the service area, negative pressure will be generated in the exhaust groove 17, thereby realizing the exhaust operation of the air outlet pipe 13.

[0069] In order to reduce energy consumption, the present invention also provides a ventilation method for the special parking area 6, which realizes ventilation by utilizing the suction force brought by the vehicle during driving. The present invention also provides a first mesh plate 4 at the service area entrance 2, and an exhaust groove 17 is provided at the bottom end of the first mesh plate 4. An exhaust pipe 16 is connected to the exhaust groove 17, and the exhaust pipe 16 is connected to the air outlet pipe 13. When the vehicle passes through the first mesh plate 4 at the service area entrance 2, the exhaust groove 17 will generate negative pressure, thereby realizing the exhaust operation of the air outlet pipe 13.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas, characterized by: Specifically includes the following modules: An image acquisition module is used to collect images of all vehicles entering the service area and transmit them to the hazardous chemicals transport vehicle identification module; The hazardous chemicals transport vehicle identification module automatically identifies hazardous chemicals transport vehicles entering the service area through an image comparison algorithm based on license plate information, vehicle external identification and hazardous goods signs; The parking guidance module receives the identification result of the hazardous chemicals transport vehicle identification module and guides the hazardous chemicals transport vehicle to the designated parking area through the ground guidance system; The leakage detection module is installed in the dedicated parking area to conduct all-round inspections on the parked hazardous chemical transport vehicles to determine whether there is a chemical leak; Real-time warning module: if the leakage detection module detects an abnormal situation, it will automatically trigger the sound and light alarm in the service area and send warning information to the management center; A special parking area (6) is provided in a high-speed service area (1). In a leakage detection module, a monitoring camera (5) is provided at the special parking area (6). The special parking area (6) includes second grid plates (9) arranged at intervals. The second grid plates (9) are paved and detachable. A plurality of elastic rods (8) arranged at intervals are provided on each second grid plate (9). A gas sensor (10) for detecting leaked gas is fixedly connected to the top of the elastic rod (8). A parking space for a single hazardous chemical transport vehicle (11) is provided between two adjacent second grid plates (9). A slope (7) is provided in the middle of the parking space. A chute (71) is provided on the slope (7). The chute (71) extends to the inner side of the outer edge of the second grid plate (9). The chute (71) is slightly lower than the surface of the slope (7) to play a role in drainage. The bottom end of the second grid plate (9) is an empty groove (12), and the side of the empty groove (12) close to the parking space is rotatably connected to a ring (19) through a rotating shaft. The top of the ring (19) is fixedly connected to an inclined plate (18) arranged in front and behind. In the initial state, the inclined plate (18) is in a horizontal state. A tilt sensor (15) is fixedly connected to the inclined plate (18). The inclined plate (18) is made of a lightweight plastic material. When liquid leaks from the hazardous chemical transport vehicle (11), the liquid can drip onto the inclined plate (18) along the chute (71), destroying the balance state of the inclined plate (18). The inclined plate (18) will tilt, thereby realizing sensitive detection of liquid leakage. A groove (181) for temporary storage is provided on the inclined plate (18); A flange (72) is fixedly connected to the front and rear middle positions of the slope (7), and the front and rear sides of the flange (72) are inclined to guide the leaked liquid in the middle position into the nearby chute (71) to prevent the liquid from dripping into the middle position of the inclined plate (18).

2. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas according to claim 1 is characterized by: The intelligent monitoring and early warning system also includes an entry and exit and stay time monitoring module, which records the time when hazardous chemicals transport vehicles enter the service area, the time when hazardous chemicals transport vehicles leave the service area, the parking location of hazardous chemicals transport vehicles, and provides reminders to check if the stay time is too long.

3. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas according to claim 2 is characterized by: The intelligent monitoring and early warning system also includes an illegal road driving alarm module. According to current relevant regulations, vehicles transporting hazardous chemicals are strictly prohibited from entering the highway between 0:00 and 6:00 in the morning. If a parked vehicle transporting hazardous chemicals leaves the service area and drives on the highway during this period, an alarm will be sounded and the information will be reported to the service area administrator and traffic police department at the same time.

4. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas according to claim 3 is characterized by: An air outlet pipe (13) is arranged underground in the dedicated parking area (6). The air outlet pipe (13) is connected to the inner side of each empty slot (12) through an air exhaust port (20). When the air outlet pipe (13) exhausts air, it can remove the weak leaked gas accumulated on the surface of the dedicated parking area (6), thereby achieving a timely ventilation effect.

5. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas according to claim 4 is characterized by: The air outlet pipe (13) is provided with an explosion-proof electric valve (14) for closing the air outlet pipe (13) when a dangerous situation occurs.

6. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas according to claim 5 is characterized by: The air outlet pipe (13) is connected to a forced ventilation fan (21).

7. The intelligent monitoring and early warning system for hazardous chemicals transport vehicles in highway service areas according to claim 6 is characterized by: An identification camera (3) is arranged at the entrance (2) of the service area. A first grid plate (4) is arranged at the entrance (2) of the service area. An exhaust groove (17) is provided at the bottom end of the first grid plate (4). An exhaust pipe (16) is connected to the exhaust groove (17). The exhaust pipe (16) is connected to the air outlet pipe (13). When a vehicle passes through the first grid plate (4) at the entrance (2) of the service area, negative pressure is generated in the exhaust groove (17), thereby realizing the exhaust operation of the air outlet pipe (13).

Images