A road construction enclosure area safety protection method and system

Abstract

The present invention discloses a safety protection method and system for road construction fence areas, belonging to the field of road construction technology. The present invention solves the problem of how to accurately determine the layout parameters of construction fences according to the actual conditions of the construction area. The present invention includes fully considering the differences in fence layout requirements in various regions, and deriving fence installation parameters that are specific to the area based on the construction conditions and vehicle conditions in the construction area. After laying out the fence according to the fence installation parameters, it not only meets the local fence installation requirements, but also guarantees the rationality of the fence installation parameters to the greatest extent, which is conducive to the smooth progress of construction and avoids excessive occupation of roads. At the same time, the level of triggering safety reminders is jointly determined according to the vehicle speed and vehicle type, thereby achieving the effect of not affecting construction but also effectively improving the safety of road construction.

Description

Technical Field

[0001] The present invention belongs to the technical field of road construction, and in particular relates to a safety protection method and system for a road construction enclosure area. Background Art

[0002] Expressways, as a vital component of modern transportation, bear enormous transportation pressures. Maintenance is crucial to ensuring the safety, smooth operation, and long-term use of expressways. Safety standards in maintenance are of paramount importance, impacting not only the lives of maintenance personnel but also the safety of expressway users. First, maintenance personnel must receive comprehensive safety training before assuming their duties. They must understand the characteristics and potential risks of expressway maintenance work and become familiar with various safety operating procedures and emergency response measures. This training should cover traffic laws, safety sign identification, and the use of personal protective equipment. Second, maintenance personnel must wear standard personal protective equipment, such as helmets, reflective vests, and safety shoes, while working. This equipment can help reduce the risk of accidental injuries. During maintenance work, maintenance personnel must clearly define the work area and safety warning zones. Traffic warning signs and equipment, such as cones and warning lights, should be installed as required to ensure that passing vehicles are aware of the work area and slow down.

[0003] Existing highway road construction fences (composed of several cones, etc.) are mostly randomly set within the range of construction fence layout parameters required by national or local regulations. However, different road conditions are different. If they are randomly set within the prescribed range, there may be inadequate protection. Therefore, if the layout parameters of the construction fences can be further accurately determined, it will effectively improve the safety of road construction. Summary of the Invention

[0004] In response to the problem in the prior art of how to accurately determine the layout parameters of construction fences according to the actual conditions of the construction area, the present invention provides a road construction fence area safety protection method and system.

[0005] The technical solution adopted in the present invention is as follows:

[0006] A road construction enclosure area safety protection method comprises the following steps:

[0007] S1: Determine the construction status, including: construction area, construction area, construction time, and number of construction workers;

[0008] S2: Determine the local road construction fence installation parameter setting requirements based on the construction area;

[0009] S3: Obtain historical vehicle operation information of the construction area, and obtain and use the historical vehicle operation information, which includes traffic flow data, accident rate data, and vehicle speed data of the construction area at each time point;

[0010] S4: Determine the layout parameters of the enclosure area based on weather conditions, construction conditions, enclosure installation parameter setting requirements, and historical vehicle operation information;

[0011] S5: Deploy the fence according to the layout parameters of the fence area, and feed back the layout parameters of the fence area and driving information of the recommended adjustment to the driver;

[0012] S6: Monitor the speed and type of vehicles approaching the enclosure area, obtain the speed of different vehicle types, and issue different levels of reminders to construction workers based on the speed.

[0013] Preferably, the layout parameters of the enclosure area determined in S4 include the minimum distance between the starting point of the enclosure on the vehicle side and the starting point of the construction area in the length direction, the minimum distance between the enclosure and the construction area in the width direction, and the construction time.

[0014] Preferably, S4 specifically includes the following steps:

[0015] S401: Estimated construction duration based on historical experience , based on the estimated construction time With the goal of minimizing traffic flow, obtain the following formula from the historical vehicle operation information: and :

[0016]

[0017] in, To preliminarily estimate the start time of the operation, To preliminarily estimate the completion time of the operation, The estimated construction duration of this construction project;

[0018] If obtained and If there is only one group, then use that group directly. and As the start and end time of this construction; if S401 obtains and If there is more than one group, obtain the data of each group based on the historical vehicle operation information. and The accident rate data for the corresponding period, select the one with the lowest accident rate and The group is used as the start and end time of this construction;

[0019] S402: Filter the speed data corresponding to the time period in the historical vehicle operation information based on the start and end time of the construction obtained in step S401, and obtain the minimum distance between the starting point of the fence on the vehicle's side and the starting point of the construction area based on the weather forecast information and the speed data. , the specific formula is as follows:

[0020]

[0021] in, The minimum distance between the starting point of the enclosure on the vehicle's approaching direction and the starting point of the construction area. d is the basic length value, which is set according to experience or local enclosure setting requirements. is the vehicle speed correction coefficient, is the weather influence coefficient, is the average speed of the vehicle during the time period;

[0022] S403: Determine the basic value of the minimum spacing in the width direction based on historical experience. When the number of construction workers exceeds 3, add 0.2-0.6m to the basic value for each additional worker. The specific formula is as follows:

[0023]

[0024] in, The minimum distance between the fence and the construction area in the width direction, is the width base value, is the width increase coefficient, and its value is 0.2-0.6m. The number of workers.

[0025] As a preference, the weather influence coefficient in S402 The value of is set according to the weather conditions, specifically:

[0026] When the weather forecast shows that the construction day will be sunny or cloudy,

[0027] When the weather forecast shows that the visibility on the construction day is greater than 100m,

[0028] When the weather forecast shows that the visibility on the construction day is less than 100m, .

[0029] As a preferred embodiment, in S402 It is determined based on experience and its value is 0.3-0.4.

[0030] Preferably, the driving information recommended for adjustment in S5 includes driving speed and driving lane, wherein the driving speed is determined based on the current traffic volume and vehicle type, and the driving lane is determined based on the layout parameters of the enclosure area.

[0031] Preferably, when the navigation software indicates that the current road section is congested, if more than 60% of the current vehicle types are large vehicles, a reminder to reduce the speed to less than 20% of the speed limit will be issued; if more than 60% of the current vehicle types are small vehicles, a reminder to reduce the speed to 30-40% of the speed limit will be issued;

[0032] When the navigation software shows that the current road section is a clear road section, if more than 60% of the current vehicle types are large vehicles, a reminder will be issued to reduce the speed to 20-30% of the speed limit; when more than 60% of the current vehicle types are small vehicles, a reminder will be issued to reduce the speed to 40-50% of the speed limit.

[0033] As a preferred option, in S6, when a large vehicle is detected ahead, a first-level reminder is given to the construction workers when the vehicle speed exceeds the speed limit by less than 10%, reminding them to pay attention to the vehicle ahead; a second-level reminder is given to the construction workers when the vehicle speed exceeds the speed limit by 10%-20%, reminding them to suspend construction and pay attention to avoid the vehicle ahead; a third-level reminder is given to the construction workers when the vehicle speed exceeds the speed limit by more than 20%, reminding them to make an emergency avoidance.

[0034] When a small vehicle is detected coming from the front, a first-level reminder will be given to the construction workers when the vehicle speed exceeds the speed limit by 20% or less, reminding them to pay attention to the vehicle coming from the front; when the vehicle speed exceeds the speed limit by 20%-40%, a second-level reminder will be given to the construction workers, reminding them to suspend construction and pay attention to avoid the vehicle; when the vehicle speed exceeds the speed limit by more than 40%, a third-level reminder will be given to the construction workers, reminding them to make an emergency avoidance.

[0035] Preferably, radar equipment or video surveillance equipment is used in S3 and S7 to collect traffic flow information and vehicle conditions in the construction area and calculate the traffic volume, speed and vehicle type data.

[0036] A road construction enclosure area safety protection system includes the following modules:

[0037] The setting requirement determination module is used to determine the local road construction fence installation parameter setting requirements based on the construction area;

[0038] Vehicle information collection module, used to collect traffic flow information and vehicle information in the construction area and in front of the construction area;

[0039] The enclosure installation parameter determination module is used to determine the enclosure installation parameters based on the input construction conditions, the setting requirements of the top removal determination module, and the traffic flow information and vehicle information collected by the vehicle information collection module;

[0040] A speed limit determination module is used to determine the speed limit based on the enclosure installation parameters and vehicle type;

[0041] The safety reminder module is used to monitor the speed of vehicles according to different vehicle types and provide construction workers with different levels of reminders based on the vehicle speed.

[0042] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0043] The present invention fully considers the differences in the requirements for fence installation in various regions, and jointly derives the fence installation parameters specific to the area based on the construction conditions (construction area, construction area, construction time, number of construction personnel, etc.) and the vehicle conditions in the construction area (vehicle speed, type and traffic volume, etc.). After the fence is laid out according to the fence installation parameters, it not only meets the local fence installation needs, but also ensures the rationality of the fence installation parameters to the greatest extent, which is conducive to the smooth progress of construction and avoids excessive occupation of the road. At the same time, since the speed limit is set according to the vehicle conditions, and the level of triggering the reminder is jointly determined according to the speed limit and the vehicle type, it achieves the effect of not affecting the construction but also effectively improving the safety of road construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a logic flow chart of the present invention;

[0045] Figure 2 This is a schematic diagram of the enclosure parameter settings in the present invention. DETAILED DESCRIPTION

[0046] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0047] like Figure 1 As shown, a road construction enclosure area safety protection method includes the following steps:

[0048] S1: Determine the construction status, which includes: construction area, construction area, construction time, and number of construction workers; collect images of the area to be constructed, and use a camera or mobile phone to collect images. When shooting, be sure to include the entire construction area in the image. Then input the image into image processing software and use drawing tools to manually mark the shape of the construction area in the image, and use a color that does not exist in other positions in the image (such as bright yellow) to paint the construction area so that the position of the construction area on the image is fully covered by the color. Then capture the area containing the color in the image to obtain the shape data of the construction area; at the same time, input the location information data of the construction area, the estimated construction area data, the estimated construction time data, and the number of construction workers data, and establish a connection between the location information data, the estimated construction area data, the estimated construction time data, and the number of construction workers data and the construction area shape data to form the data of this construction situation;

[0049] S2: Establish a database of official documents on road construction standards and requirements in various regions (based on prefecture-level cities). Based on the current construction data obtained in S1, search the database for official documents on road construction standards and requirements in that region. Determine the local road construction fence installation parameter setting requirements based on the official documents on road construction standards and requirements in that region.

[0050] S3: Obtain the historical vehicle operation information of the construction area for the recent consecutive month (i.e., starting from the day the construction situation is determined and going back one month). Obtain the historical vehicle operation information of the area in the recent period. The historical vehicle operation information includes the traffic volume, speed, and vehicle type of the construction area at each time point. Vehicle types include large vehicles and small vehicles. Large vehicles include: heavy trucks, buses, large passenger vehicles, large construction machinery vehicles, large tractors, large special vehicles, large RVs, etc. Small vehicles include cars with a total mass of no more than 4 or 5 tons and a passenger capacity of no more than 9 people including the driver, or a length of less than 6 meters. Such as sedans, jeeps, mini cars, light passenger cars, light trucks, and small special vehicles.

[0051] S4: Determine the layout parameters of the enclosure area based on the construction situation, enclosure installation parameter setting requirements, and historical vehicle operation information. The specific enclosure area layout parameters determined in S4 include the minimum distance between the starting point of the enclosure on the vehicle side and the starting point of the construction area in the length direction, the minimum distance between the enclosure and the construction area in the width direction, and the construction time;

[0052] S4 specifically includes the following steps:

[0053] S401: Estimated construction duration based on historical experience , based on the estimated construction time With the goal of minimizing traffic flow, obtain the following formula from the historical vehicle operation information: and :

[0054]

[0055] in, To preliminarily estimate the start time of the operation, To preliminarily estimate the completion time of the operation, The estimated construction duration of this construction project;

[0056] If obtained and If there is only one group, then use that group directly. and As the start and end time of this construction; if S401 obtains and If there is more than one group, obtain the data of each group based on the historical vehicle operation information. and The accident rate data for the corresponding period, select the one with the lowest accident rate and The group is used as the start and end time of this construction; it should be noted that if the accident rate is the lowest and If there is more than one group, all and The group will provide feedback to the operators, who can choose the appropriate construction time according to their needs. For example, in the hot summer, if one group's construction time is from 9:00 am to 11:00 am, and another's from 2:00 pm to 4:00 pm, then in order to avoid heatstroke among the workers, the construction time can be selected from 9:00 am to 11:00 pm. The construction time is determined based on the construction duration and the traffic volume in the area at each time point, and the construction time is between 8:00 and 18:00. Choosing a time period with relatively low traffic volume during normal working hours for construction is not only conducive to the normal passage of vehicles on the road and less likely to cause congestion, but also has fewer corresponding safety hazards due to low traffic volume, thereby further improving safety.

[0057] S402: Filter the speed data corresponding to the time period in the historical vehicle operation information based on the start and end time of the construction obtained in S401, and obtain the minimum distance between the starting point of the fence on the vehicle's side and the starting point of the construction area based on the weather forecast information and the speed data. (like Figure 2 The specific formula is as follows:

[0058]

[0059] in, The minimum distance between the starting point of the enclosure on the vehicle's approaching direction and the starting point of the construction area. d is the basic length value, which is set according to experience or local enclosure setting requirements. is the vehicle speed correction coefficient, is the weather influence coefficient, is the average speed of the vehicle during this time period; in other embodiments It can also be the 85% speed of the road section, that is, the speed that 85% of the vehicles in the historical operation information of the road section will not exceed;

[0060] Since rain and visibility will affect the braking distance of vehicles, in order to improve safety, the weather effect factor is also taken into account when setting the minimum distance between the starting point of the enclosure on the vehicle side and the starting point of the construction area. , and set it based on experience The specific values ​​are:

[0061] When the weather forecast shows that the construction day will be sunny or cloudy The more preferred one is 1;

[0062] When the weather forecast shows that the visibility on the construction day is greater than 100m The preferred value is 1.2

[0063] When the weather forecast shows that the visibility on the construction day is less than 100m The more preferred value is 1.5;

[0064] The value is determined based on experience, and its value is 0.3-0.4, preferably 0.3, that is, a buffer distance of 3m is added for every 10km / h of speed to improve safety. The basic length value d is also set based on experience or local requirements, for example, it can be 10m. When setting the basic safety distance, the local road construction fence installation parameter setting requirements obtained in S2 should be combined so that the final value is Meet local road construction fence installation parameter setting requirements.

[0065] S403: Determine the basic value of the minimum spacing in the width direction based on historical experience. When the number of construction workers exceeds 3, add 0.2-0.6m to the basic value for each additional worker. The specific formula is as follows:

[0066]

[0067] in, The minimum distance between the fence and the construction area in the width direction, is the basic value of width, which is also set based on experience or local requirements. is the width increase coefficient, and its value is 0.2-0.6m. The number of workers is the same as the number of people working on the site. The more construction workers there are, the larger the space required for activities. Therefore, the present invention also takes the construction workers into consideration in the width direction of the enclosure. Since different numbers of people require different working spaces, an unreasonable ratio between the number of people and the area of ​​the enclosure will make it easy for construction workers to cross the enclosure, which will also affect the efficiency of construction. Therefore, in this embodiment, when the number of construction workers exceeds 3, the width of the enclosure is increased by 0.2m for each additional person, so that a suitable ratio relationship is established between the construction area and the number of people, which can further improve construction efficiency and safety factor.

[0068] S5: Deploy the fence according to the layout parameters of the fence area, and feedback the layout parameters of the fence area and driving information with recommended adjustments to the driver; the driver can intuitively see the specific shape of the fence area on the navigation software, facilitating timely avoidance;

[0069] S6: Monitor the speed and type of vehicles coming from the front of the enclosure area, monitor the speed of vehicles according to different vehicle types, and provide construction workers with different levels of reminders based on the vehicle speed.

[0070] In one embodiment, the driving information recommended for adjustment in S5 includes driving speed and driving lane, wherein the driving speed is determined based on the historical traffic volume, historical average speed, vehicle type and layout parameters of the enclosure area in the previous month of the area, and the driving lane is determined based on the layout parameters of the enclosure area.

[0071] In one embodiment, when the navigation software indicates that the current road segment is congested (e.g., displayed as a red or yellow segment in the navigation software), if more than 60% of the vehicles present are large vehicles, a reminder is issued to reduce the speed to less than 20% of the speed limit; if more than 60% of the vehicles present are small vehicles, a reminder is issued to reduce the speed to 30-40% of the speed limit;

[0072] When the navigation software indicates that the current road section is clear (for example, a green section), if more than 60% of the vehicles on the road are large, a reminder will be issued to reduce the speed to 20-30% of the speed limit. If more than 60% of the vehicles on the road are small, a reminder will be issued to reduce the speed to 40-50% of the speed limit. Large vehicles are heavier and larger, requiring longer braking distances. The faster the speed, the longer the braking distance. Therefore, the speed limits in the designated enclosures for different vehicle types are more reasonable and facilitate normal traffic flow on the roads in those areas.

[0073] In one embodiment, in S6, the type and speed of vehicles within 5 kilometers of the construction area are detected. If a large vehicle is detected, a first-level reminder is issued to the construction workers when the speed exceeds the speed limit by less than 10%, reminding them to pay attention to the oncoming vehicle. If the speed exceeds the speed limit by 10%-20%, a second-level reminder is issued to the construction workers, reminding them to suspend construction and pay attention to avoid the vehicle. If the speed exceeds the speed limit by more than 20%, a third-level reminder is issued to the construction workers, reminding them to make an emergency avoidance.

[0074] When a small vehicle is detected, a Level 1 alert is issued to construction workers if its speed exceeds the speed limit by 20% or less, reminding them to pay attention to the oncoming vehicle. A Level 2 alert is issued if the speed exceeds the speed limit by 20%-40%, prompting them to pause work and avoid the vehicle. A Level 3 alert is issued if the speed exceeds the speed limit by more than 40%, prompting them to make an emergency evasive move. Different speed limit thresholds are set for different types of speeding vehicles, and different alert levels are set based on the speeding situation, making the alerts more accurate and facilitating emergency avoidance while balancing normal construction work.

[0075] In one embodiment, radar equipment or video surveillance equipment is used in S3 and S6 to collect traffic flow information and vehicle conditions in the construction area, and the traffic volume, speed, and vehicle type data are calculated. For example, when radar equipment is used for collection: the radar equipment data collection scheme is shown in Table 1:

[0076] Table 1

[0077]

[0078] The radar can be installed on a roadside pole 5 to 8 meters away from the lane, with a depression angle of 15° to 30°. When counting traffic volume, the radar's target tracking algorithm (such as Kalman filtering) records the number of consecutive vehicle trajectories (triggering "entry-exit" detection area events). When counting vehicle speed, vehicle speed is detected based on the Doppler shift principle.

[0079] Vehicle classification is based on radar cross-sectional area (RCS) and target size. For example, RCS>10 dBsm is a large vehicle; RCS ≤10 dBsm is a small vehicle.

[0080] A road construction enclosure area safety protection system includes the following modules:

[0081] The setting requirement determination module is used to determine the local road construction fence installation parameter setting requirements based on the construction area;

[0082] Vehicle information collection module, used to collect traffic flow information and vehicle information in the construction area and in front of the construction area;

[0083] The enclosure installation parameter determination module is used to determine the enclosure installation parameters based on the input construction conditions, the setting requirements of the top removal determination module, and the traffic flow information and vehicle information collected by the vehicle information collection module;

[0084] A speed limit determination module is used to determine the speed limit based on the enclosure installation parameters and vehicle type;

[0085] The safety reminder module is used to monitor the speed of vehicles according to different vehicle types and provide construction workers with different levels of reminders based on the vehicle speed.

[0086] The above-described embodiments merely represent specific implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of the present application. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the technical concept of the present application, and all such variations and improvements fall within the scope of protection of the present application.

Claims

1. A road construction enclosure area safety protection method, characterized by: The following steps are involved: S1: Determine the construction status, including: construction area, construction area, construction time, and number of construction workers; S2: Determine the local road construction fence installation parameter setting requirements based on the construction area; S3: Obtain historical vehicle operation information in the construction area, including traffic flow data, accident rate data, and vehicle speed data in the construction area at each time point; S4: Determine the layout parameters of the enclosure area based on weather conditions, construction conditions, enclosure installation parameter setting requirements, and historical vehicle operation information; The determined layout parameters of the enclosure area include the minimum distance between the starting point of the enclosure on the vehicle side and the starting point of the construction area in the length direction, the minimum distance between the enclosure and the construction area in the width direction, and the construction time. The specific steps include: S401: Estimated construction duration based on historical experience , based on the estimated construction time With the goal of minimizing traffic flow, obtain the following formula from the historical vehicle operation information: and : ； in, To preliminarily estimate the start time of the operation, To preliminarily estimate the completion time of the operation, The estimated construction duration of this construction project; If obtained and If there is only one group, then use that group directly. and As the start and end time of this construction; if S401 obtains and If there is more than one group, obtain the data of each group based on the historical vehicle operation information. and The accident rate data for the corresponding period, select the one with the lowest accident rate and The group is used as the start and end time of this construction; S402: Filter the speed data corresponding to the time period in the historical vehicle operation information based on the start and end time of the construction obtained in S401, and obtain the minimum distance between the starting point of the fence on the vehicle's side and the starting point of the construction area based on the weather forecast information and the speed data. , the specific formula is as follows: ； in, The minimum distance between the starting point of the enclosure on the vehicle's approaching direction and the starting point of the construction area. d is the basic length value, which is set according to experience or local enclosure setting requirements. is the vehicle speed correction coefficient, is the weather influence coefficient, is the average speed of the vehicle during the time period; S403: Determine the basic value of the minimum spacing in the width direction based on historical experience. When the number of construction workers exceeds 3, add 0.2-0.6m to the basic value for each additional worker. The specific formula is as follows: ； in, The minimum distance between the fence and the construction area in the width direction, is the width base value, is the width increase coefficient, and its value is 0.2-0.6m. is the number of workers; S5: Deploy the fence according to the layout parameters of the fence area, and feed back the layout parameters of the fence area and driving information of the recommended adjustment to the driver; S6: Monitor the speed and type of vehicles approaching the enclosure area, obtain the speed of different vehicle types, and issue different levels of reminders to construction workers based on the speed.

2. A road construction enclosure safety protection method according to claim 1, characterized in that: Weather influence coefficient in S402 The value of is set according to the weather conditions, specifically: When the weather forecast shows that the construction day will be sunny or cloudy, ; When the weather forecast shows that the visibility on the construction day is greater than 100m, ; When the weather forecast shows that the visibility on the construction day is less than 100m, .

3. A road construction enclosure area safety protection method according to claim 1, characterized in that: S402 It is determined based on experience and its value is 0.3-0.

4.

4. A road construction enclosure safety protection method according to any one of claims 1 to 3, characterized in that: The driving information recommended for adjustment in S5 includes driving speed and driving lane, wherein the driving speed is determined based on the current traffic volume and vehicle type, and the driving lane is determined based on the layout parameters of the enclosure area.

5. A road construction enclosure safety protection method according to claim 4, characterized in that: When the navigation software indicates that the current road section is congested, if more than 60% of the current vehicles are large vehicles, a reminder will be issued to reduce the speed to less than 20% of the speed limit; if more than 60% of the current vehicles are small vehicles, a reminder will be issued to reduce the speed to 30-40% of the speed limit; When the navigation software shows that the current road section is a clear road section, if more than 60% of the current vehicle types are large vehicles, a reminder will be issued to reduce the speed to 20-30% of the speed limit; when more than 60% of the current vehicle types are small vehicles, a reminder will be issued to reduce the speed to 40-50% of the speed limit.

6. A road construction enclosure safety protection method according to any one of claims 1 to 3, characterized in that: In S6, when a large vehicle is detected, a first-level reminder will be issued to the construction workers if the vehicle speed exceeds the speed limit by less than 10%, reminding them to pay attention to the vehicle ahead. A second-level reminder will be issued if the vehicle speed exceeds the speed limit by 10%-20%, reminding them to suspend work and avoid the vehicle ahead. A third-level reminder will be issued if the vehicle speed exceeds the speed limit by more than 20%, reminding them to make an emergency avoidance move. When a small vehicle is detected coming from the front, a first-level reminder will be given to the construction workers when the vehicle speed exceeds the speed limit by 20% or less, reminding them to pay attention to the vehicle coming from the front; when the vehicle speed exceeds the speed limit by 20%-40%, a second-level reminder will be given to the construction workers, reminding them to suspend construction and pay attention to avoid the vehicle; when the vehicle speed exceeds the speed limit by more than 40%, a third-level reminder will be given to the construction workers, reminding them to make an emergency avoidance.

7. A road construction enclosure safety protection method according to any one of claims 1 to 3, characterized in that: In S3 and S6, radar equipment or video surveillance equipment is used to collect traffic flow information and vehicle conditions in the construction area and calculate the traffic volume, speed and vehicle type data.

8. A system based on the road construction enclosure area safety protection method according to any one of claims 1 to 7, characterized in that: Includes the following modules: The setting requirement determination module is used to determine the local road construction fence installation parameter setting requirements based on the construction area; Vehicle information collection module, used to collect traffic flow information and vehicle information in the construction area and in front of the construction area; The enclosure installation parameter determination module is used to determine the enclosure installation parameters based on the input construction conditions, the setting requirements of the top removal determination module, and the traffic flow information and vehicle information collected by the vehicle information collection module; A speed limit determination module is used to determine the speed limit based on the enclosure installation parameters and vehicle type; The safety reminder module is used to monitor the speed of vehicles according to different vehicle types and provide construction workers with different levels of reminders based on the vehicle speed.

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