A method for preventing rear-end and secondary accidents on a road

Abstract

The application discloses a method for preventing rear-end and secondary accidents on roads, comprising the following steps: when a road operation platform first receives an emergency alarm instruction of a vehicle, if the vehicle speed is not lower than a first speed value, the first speed value is determined as a first alarm level; if the vehicle speed is between the first speed value and a second speed value, the second speed value is determined as a second alarm level; if the vehicle speed is not higher than the second speed value, the second speed value is determined as a third alarm level; the road operation platform determines an alarm area based on the position information of the vehicle which first sends the alarm instruction; if the road operation platform receives an emergency alarm instruction of a vehicle in the alarm area again within a preset time period after receiving the first emergency alarm instruction, the alarm level is maintained or upgraded. When an accident occurs on a highway or expressway, the road operation platform can realize different levels of alarms and sound and light early warnings in real time based on the communication between the vehicle running on the road and the road operation platform, so that the vehicle can be prepared for speed reduction and other early warnings in advance, and secondary major or serious accidents can be avoided.

Description

Technical Field

[0001] This invention relates to the field of intelligent transportation technology, and specifically to a method for preventing rear-end collisions and secondary accidents on roads. Background Technology

[0002] Currently, traffic accidents frequently occur on highways and expressways, and due to the high speeds involved, most of these accidents are major accidents or secondary accidents.

[0003] ADAS, or Forward Collision Warning System, is a professional ADAS system that is mandatory to be installed on large vehicles such as passenger buses, dangerous goods transport vehicles, and heavy vehicles, as well as commercial ADAS systems for cars. It can prevent the first rear-end collision. However, after a rear-end collision, or after a malfunction or other accident, it is very easy to cause secondary major or catastrophic accidents, resulting in huge losses of life and property and tragedies of secondary disasters that could have been avoided. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a method for preventing rear-end collisions and secondary accidents on roads (highways / expressways).

[0005] This invention discloses a method for preventing rear-end collisions and secondary accidents on roads, comprising:

[0006] The road transport platform monitors in real time whether any vehicles send "emergency alarm" commands;

[0007] When the road transport platform receives an "emergency alarm" command from a vehicle for the first time, it determines the alarm level based on the vehicle's current speed. Specifically, if the vehicle speed is not lower than the first speed value, it is determined to be a Level 1 alarm; if the vehicle speed is between the first and second speed values, it is determined to be a Level 2 alarm; if the vehicle speed is not higher than the second speed value, it is determined to be a Level 3 alarm. The first speed value is greater than the second speed value, and the level of the Level 3 alarm is greater than the level of the Level 2 alarm, which is greater than the level of the Level 1 alarm.

[0008] The road transport platform determines the alarm area based on the location information of the vehicle that first triggered the alarm;

[0009] Within a preset time period after receiving the first "emergency alarm" command, the road transport platform determines whether it has received a second "emergency alarm" command from a vehicle in the alarm area. If it does, it maintains or upgrades the alarm level based on the current vehicle speed. If the vehicle speed is not lower than the first speed value, it is determined to be a level two alarm. If the vehicle speed is between the first speed value and the second speed value, it is determined to be a level three alarm.

[0010] The road transport platform sends different audible and visual warnings to vehicles within the alarm area based on the alarm level.

[0011] As a further improvement to the present invention, it also includes:

[0012] If the Daoyun platform receives a second "emergency alarm" command after a preset time period has elapsed, it will maintain the current alarm level.

[0013] As a further improvement to the present invention, it also includes:

[0014] If the road transport platform receives at least one more "emergency alarm" instruction from vehicles within the alarm area after receiving the second "emergency alarm" instruction, it will directly upgrade to a level three alarm.

[0015] As a further improvement to the present invention, it also includes:

[0016] The road transport platform monitors in real time whether any vehicles send an "alarm cancel" command;

[0017] The platform counts the number of "emergency alarm" commands and "alarm cancellation" commands received, and calculates the difference between the number of "emergency alarm" commands and the number of "alarm cancellation" commands in real time.

[0018] If the difference is greater than the first threshold, an alarm will be triggered or the alarm will be retained.

[0019] If the difference is less than the second threshold, the alarm is deactivated; if the first threshold is greater than the second threshold.

[0020] As a further improvement of the present invention, the first threshold is 1 and the second threshold is -3.

[0021] As a further improvement of the present invention, the road transport platform sends different audible and visual warnings to vehicles within the alarm area based on the alarm level, including:

[0022] Level 1 Alarm: Red light flashing, announcement "Level 1 Alarm Ahead, please reduce speed";

[0023] Level 2 Alarm: Red light flashes, announcement: "Level 2 Alarm Ahead, please reduce speed to below 50km / h";

[0024] Level 3 warning: Red light flashing, announcement: "Level 3 warning ahead, please reduce speed to below 30km / h."

[0025] As a further improvement of the present invention, when the vehicle speed decreases to the required level, the alarm voice broadcast is canceled, while the red light flashing remains; when the road transport platform deactivates the alarm, the on-board equipment's audible and visual alarms are automatically canceled.

[0026] As a further improvement of the present invention, an "emergency alarm" button and an "alarm cancellation" button are configured or added to the vehicle's ADAS system. When the "emergency alarm" button is pressed, the vehicle sends an "emergency alarm" command to the road transport platform; when the "alarm cancellation" button is pressed, the vehicle sends an "alarm cancellation" command to the road transport platform. The "emergency alarm" button is configured to be red, and the "alarm cancellation" button is configured to be green.

[0027] As a further improvement of the present invention

[0028] The first speed is 80 km / h, and the second speed is 60 km / h.

[0029] The alarm zone is within a 1-5km radius centered on the location of the vehicle that first triggered the alarm.

[0030] The preset time period is a fixed time period or a fixed time period × time period coefficient × weather coefficient.

[0031] As a further improvement of the present invention

[0032] The time period coefficient can be set to:

[0033] The value is 1 during the daytime period from 06:00 to 18:00.

[0034] When the evening period is from 6 PM to 10 PM, the value is 1 / 2;

[0035] During the nighttime period from 10 PM to 6 AM, the value is taken as 1 / 3.

[0036] The weather coefficient has the following values:

[0037] The value is 1 when the sun is continuously shining during the day or the moon is continuously shining at night.

[0038] When there is no sun or intermittent sun during the day, or no moon or intermittent moon at night, the value is 1 / 2;

[0039] When it rains or is foggy during the day, or when it rains or is foggy at night, take 1 / 3 of the value.

[0040] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0041] When an accident occurs on highways / expressways, this invention enables real-time alarms and audible and visual warnings at different levels based on communication between vehicles on the road and the road transport platform. This provides advance warning to other vehicles on the same road segment, allowing them to take precautions such as slowing down, thus preventing secondary major and catastrophic accidents and minimizing the possibility of huge losses of life and property and the tragedy of secondary disasters. Attached Figure Description

[0042] Figure 1 This is a flowchart of the method for preventing rear-end collisions and secondary accidents on roads disclosed in this invention. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] The present invention will now be described in further detail with reference to the accompanying drawings:

[0045] like Figure 1 As shown, this invention provides a method for preventing rear-end collisions and secondary accidents on roads. The system implementing this method includes a road transport platform and an intelligent vehicle-mounted system (ADAS system) that communicate with each other. The intelligent vehicle-mounted system is installed on the vehicle, and an "emergency alarm" button and an "alarm cancellation" button are configured or added to the vehicle's ADAS system. Pressing the "emergency alarm" button sends an "emergency alarm" command to the road transport platform; pressing the "alarm cancellation" button sends an "alarm cancellation" command to the road transport platform. The "emergency alarm" button is configured in red, and the "alarm cancellation" button is configured in green. The emergency alarm is used to prevent disasters and secondary disasters; the alarm cancellation is used to promptly clear traffic at the scene. This method includes:

[0046] Step 1: The road transport platform monitors in real time whether any vehicles send "emergency alarm" and "alarm cancellation" commands;

[0047] Step 2: When the road transport platform receives the vehicle's "emergency alarm" command for the first time, it determines the alarm level based on the vehicle's current speed; specifically:

[0048] If the vehicle speed is not lower than the first speed value, it is determined to be a level one alarm;

[0049] If the vehicle speed is between the first speed value and the second speed value, it is determined to be a level two alarm;

[0050] If the vehicle speed is not higher than the second speed value, it is determined to be a level three alarm;

[0051] in,

[0052] The first speed value is greater than the second speed value, preferably the first speed value is 80km / h and the second speed value is 60km / h;

[0053] The alarm level is ranked as follows: Level 3 alarm > Level 2 alarm > Level 1 alarm. The preferred alarm level is red (representing a critical emergency), Level 3 is orange (representing a major emergency), and Level 1 is yellow (representing an emergency). This design is based on the fact that on highways and expressways, the worst possible hazards are slow-moving rear-end collisions and other secondary disasters. Therefore, when a vehicle is traveling at a low speed, it indicates a road accident ahead, hence the highest level, Level 3, is listed. Furthermore, the number of alarm levels can be selected according to actual needs; for example, it can be expanded to four levels.

[0054] Example:

[0055] If the driver of vehicle A discovers a road accident ahead while driving, they press the "Emergency Alarm" button. Upon receiving this command, the road transport platform determines whether it is the first time it has received an alarm command. If it is the first time, the road transport platform determines the alarm level based on the vehicle speed information sent by the intelligent vehicle device. For example, if vehicle A's speed is 90 km / h, it is determined to be a Level 1 alarm, indicating the presence of a dangerous factor; if vehicle A's speed is 70 km / h, it is determined to be a Level 2 alarm, indicating an urgent dangerous factor; and if vehicle A's speed is 50 km / h, it is determined to be a Level 3 alarm, indicating a very urgent dangerous factor.

[0056] Step 2: The road transport platform determines the alarm area based on the location information of the vehicle that first triggered the alarm; among which,

[0057] After an alarm is triggered, the road transport platform needs to promptly determine the area where the accident occurred. To this end, the present invention determines the alarm area based on the location information of the vehicle that first triggered the alarm. The alarm area is within a radius of 1 to 5 km centered on the location of the vehicle that first triggered the alarm.

[0058] Example:

[0059] If vehicle A is the first vehicle to trigger the alarm, the road transport platform will define an alarm area with a radius of 5km, centered on the location of vehicle A when it pressed the emergency alarm button.

[0060] Step 3: Within a preset time period after receiving the first "emergency alarm" instruction, the road transport platform determines whether it has received a second "emergency alarm" instruction from a vehicle in the alarm area.

[0061] If a second "emergency alarm" command is received within a preset time period, the alarm level will be maintained or upgraded based on the current vehicle speed. If the vehicle speed is not lower than the first speed value, it will be determined as a level two alarm; if the vehicle speed is between the first speed value and the second speed value, it will be determined as a level three alarm.

[0062] If a second "emergency alarm" command is received after a preset time period, the current alarm level will be maintained.

[0063] in,

[0064] The above design of the present invention realizes the upgrading or maintenance of alarm level based on the number of alarms of vehicles in the alarm area. If other vehicles in the alarm area also send emergency alarm commands within a preset time, it means that the disaster situation has been upgraded; at this time, the corresponding alarm level upgrade needs to be made.

[0065] The preset time period of this invention can be a fixed time period or a fixed time period × time period coefficient × weather coefficient; wherein, the fixed time period can be selected from 3 to 30 seconds, and the preset time period can also be adjusted adaptively based on the time period and weather conditions. For example:

[0066] The time period coefficient can be set to:

[0067] The value is 1 during the daytime period from 06:00 to 18:00.

[0068] When the evening period is from 6 PM to 10 PM, the value is 1 / 2;

[0069] During the nighttime period from 10 PM to 6 AM, the value is taken as 1 / 3.

[0070] The weather coefficient has the following values:

[0071] The value is 1 when the sun is continuously shining during the day or the moon is continuously shining at night.

[0072] When there is no sun or intermittent sun during the day, or no moon or intermittent moon at night, the value is 1 / 2;

[0073] When it rains or is foggy during the day, or when it rains or is foggy at night, take 1 / 3 of the value.

[0074] Example:

[0075] Taking a preset time period of 3-30 seconds as an example, if vehicle A sends an emergency alarm for the first time, and another vehicle in the alarm area (which may or may not include vehicle A), such as vehicle B, sends an emergency alarm within 10 seconds of the first emergency alarm, and the road transport platform determines that it is a second emergency alarm, if vehicle B's speed is 90km / h, the alarm level will be upgraded from Level 1 to Level 2; if vehicle B's speed is 70km / h, the alarm level will be upgraded from Level 2 to Level 3.

[0076] Step 4: If the road transport platform receives at least one more "emergency alarm" instruction from vehicles within the alarm area after receiving the second "emergency alarm" instruction, it will directly upgrade to a level three alarm.

[0077] Example:

[0078] If the platform receives a second emergency alarm and then receives a third alarm from vehicle C or a fourth alarm from vehicle D within the alarm area, the alarm level will be directly upgraded to a higher level, i.e., a level three alarm.

[0079] Step 5: The road transport platform counts the number of "emergency alarm" commands and "alarm cancellation" commands received, and calculates the difference between the number of "emergency alarm" commands and the number of "alarm cancellation" commands in real time.

[0080] If the difference is greater than the first threshold, an alarm will be triggered or the alarm will be retained.

[0081] If the difference is less than the second threshold, the alarm is deactivated; if the first threshold is greater than the second threshold.

[0082] The first threshold is 1, and the second threshold is -3.

[0083] Example:

[0084] When the difference is greater than or equal to "1", it is an "alarm", that is, an alarm is triggered or the alarm is held; when the difference is less than or equal to "-3", it is an "alarm cleared"; when the difference is less than 1 but greater than "-3", that is, "0" to "-2", it is an "alarm about to be cleared"; before issuing an alarm clearing command, it must be manually confirmed 1-3 times or more, that is, confirmed by the telephone of the safety officer of the first alarm vehicle or the telephone of the safety officer of the subsequent alarm vehicles.

[0085] Step 6: The road transport platform sends different audible and visual warnings to vehicles within the alarm area based on the alarm level; specifically including:

[0086] Level 1 Alarm: Red light flashing, announcement "Level 1 Alarm Ahead, please reduce speed";

[0087] Level 2 Alarm: Red light flashes, announcement: "Level 2 Alarm Ahead, please reduce speed to below 50km / h";

[0088] Level 3 warning: Red light flashing, announcement: "Level 3 warning ahead, please reduce speed to below 30km / h."

[0089] Once the vehicle's speed has decreased to the required level, the alarm voice broadcast will be canceled, while the red light flashing will remain on. Once the road transport platform deactivates the alarm, the onboard equipment's audible and visual alarms will be automatically canceled.

[0090] Furthermore, considering non-road transport monitoring, the alarm rule is simply to add 10 km / h to the speed value of the road transport platform, and the rest is the same; the mobile platform is not included in the vehicle ledger score assessment, but the video from the vehicle terminal can be used as one of the bases for accident handling.

[0091] Furthermore, when the vehicle terminal uploads an alarm, it will perform anti-overwrite processing on the video within 30 or 60 seconds before and after Adas, Dsm, and Dbm, save it locally and upload it to the backend, which can be used as one of the bases for adding or deducting points in possible accidents afterward.

[0092] Based on the above method, this invention can also establish agreements and assessments for emergency alarms. Specifically, any vehicle following a vehicle that detects an emergency ahead must issue an emergency alarm. Failure to do so will be considered a violation of driving rules and will be included in the annual vehicle inspection assessment. The first three vehicles to issue an alarm in the designated area will receive bonus points: 3 points, 2 points, and 1 point respectively. For vehicles failing to issue an alarm in an abnormal area, 1 point will be deducted from the corresponding vehicle's record. After big data analysis, the assessment results will be sent to the relevant authorities and included in the vehicle registers.

[0093] application:

[0094] The method of this invention can be effectively combined with the application of intelligent supervision systems to promote the improvement of the performance capabilities of provincial, municipal, and county (district) level transportation authorities and road transport enterprises, enhance drivers' awareness and initiative in safe driving, and truly realize the five major transformations in road transport industry management:

[0095] 1. The scope of management has shifted from "single vehicle" to "equal emphasis on people and vehicles";

[0096] 2. The management process has shifted from "post-event accountability" to "pre-event prevention";

[0097] 3. Management methods have been upgraded from "human wave tactics" to "technology-based defense tactics";

[0098] 4. Law enforcement supervision has shifted from "on-site enforcement" to a combination of "online and offline" approaches;

[0099] 5. The management objective has shifted from "handling violations" to "cultivating good behavior".

[0100] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for preventing rear-end collisions and secondary accidents on roads, characterized in that, include: The road transport platform monitors in real time whether any vehicles send "emergency alarm" commands; When the road transport platform receives an "emergency alarm" command from a vehicle for the first time, it determines the alarm level based on the vehicle's current speed. If the vehicle speed is not lower than the first speed value, it is determined to be a Level 1 alarm; if the vehicle speed is between the first and second speed values, it is determined to be a Level 2 alarm; if the vehicle speed is not higher than the second speed value, it is determined to be a Level 3 alarm. The first speed value is greater than the second speed value, and the level of the Level 3 alarm is greater than the level of the Level 2 alarm, which is greater than the level of the Level 1 alarm. The road transport platform determines the alarm area based on the location information of the vehicle that first triggered the alarm; Within a preset time period after receiving the first "emergency alarm" command, the road transport platform determines whether it has received a second "emergency alarm" command from a vehicle in the alarm area. If it does, it maintains or upgrades the alarm level based on the current vehicle speed. If the vehicle speed is not lower than the first speed value, it is determined to be a level two alarm. If the vehicle speed is between the first speed value and the second speed value, it is determined to be a level three alarm. The road transport platform sends different audible and visual warnings to vehicles within the alarm area based on the alarm level; If the transportation platform receives a second "emergency alarm" command after a preset time period, it will maintain the current alarm level. If the road transport platform receives at least one more "emergency alarm" instruction from vehicles within the alarm area after receiving the second "emergency alarm" instruction, it will directly upgrade to a level three alarm. The road transport platform monitors in real time whether any vehicles send an "alarm cancel" command; The platform counts the number of "emergency alarm" commands and "alarm cancellation" commands received, and calculates the difference between the number of "emergency alarm" commands and the number of "alarm cancellation" commands in real time. If the difference is greater than the first threshold, an alarm will be triggered or the alarm will be retained. If the difference is less than the second threshold, the alarm is deactivated; if the first threshold is greater than the second threshold.

2. The method for preventing rear-end collisions and secondary accidents on roads as described in claim 1, characterized in that, The first threshold is 1, and the second threshold is -3.

3. The method for preventing rear-end collisions and secondary accidents on roads as described in claim 1, characterized in that, The road transport platform sends different audible and visual warnings to vehicles within the alarm area based on the alarm level, including: Level 1 Alarm: Red light flashing, announcement: "Level 1 Alarm Ahead, please reduce speed"; Level 2 Alarm: Red light flashing, announcement: "Level 2 Alarm Ahead, please reduce speed to below 50km / h"; Level 3 warning: Red light flashing, announcement: "Level 3 warning ahead, please reduce speed to below 30km / h." 4. The method for preventing rear-end collisions and secondary accidents on roads as described in claim 3, characterized in that, Once the vehicle's speed has decreased to the required level, the alarm voice broadcast will be canceled, while the red light flashing will remain on. Once the road transport platform deactivates the alarm, the onboard equipment's audible and visual alarms will be automatically canceled.

5. The method for preventing rear-end collisions and secondary accidents on roads as described in any one of claims 1-4, characterized in that, Configure or add an "Emergency Alarm" button and an "Alarm Cancel" button to the vehicle's ADAS system. Pressing the "Emergency Alarm" button sends an "Emergency Alarm" command to the road transport platform; pressing the "Alarm Cancel" button sends an "Alarm Cancel" command to the road transport platform. The "Emergency Alarm" button is configured to be red, and the "Alarm Cancel" button is configured to be green.

6. The method for preventing rear-end collisions and secondary accidents on roads as described in any one of claims 1-4, characterized in that, The first speed is 80 km / h, and the second speed is 60 km / h. The alarm zone is within a 1-5km radius centered on the location of the vehicle that first triggered the alarm. The preset time period is a fixed time period or a fixed time period × time period coefficient × weather coefficient.

7. The method for preventing rear-end collisions and secondary accidents on roads as described in claim 6, characterized in that, The time period coefficient can be set to: The value is 1 during the daytime period from 06:00 to 18:

00. When the evening period is from 6 PM to 10 PM, the value is 1 / 2; During the nighttime period from 10 PM to 6 AM, the value is taken as 1 / 3. The weather coefficient has the following values: The value is 1 when the sun is continuously shining during the day or the moon is continuously shining at night. When there is no sun or intermittent sun during the day, or no moon or intermittent moon at night, the value is 1 / 2; When it rains or is foggy during the day, or when it rains or is foggy at night, take 1 / 3 of the value.

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