CN211555113U - Vehicle-following distance monitoring system - Google Patents
Vehicle-following distance monitoring system Download PDFInfo
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- CN211555113U CN211555113U CN202020465114.4U CN202020465114U CN211555113U CN 211555113 U CN211555113 U CN 211555113U CN 202020465114 U CN202020465114 U CN 202020465114U CN 211555113 U CN211555113 U CN 211555113U
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Abstract
The utility model belongs to the technical field of traffic management and monitoring, in particular to traffic interval monitoring system and method, including laying radar and the camera in the road top that awaits measuring, the detection direction of radar and the all directional extending direction of the road that awaits measuring of shooting direction of camera are equipped with the reference line of perpendicular to road extending direction on the road that awaits measuring, and the reference line includes initiating line and monitoring line, and the interval less than or equal to minimum traffic interval of initiating line and monitoring line. The arrangement is reasonable, the position relation between the reference line and the motor vehicle can directly judge whether the distance between the motor vehicle and the front vehicle meets the requirement or not on the image obtained by shooting through the radar detection trigger camera, and one image can meet the evidence obtaining requirement.
Description
Technical Field
The utility model belongs to the technical field of traffic management and monitoring, in particular to traffic interval monitoring system.
Background
The fourth three of the people's republic of china road traffic safety act: in a motor vehicle traveling on the same lane, the rear vehicle should be kept at a safe distance from the front vehicle sufficient for emergency braking measures.
The higher the speed of the vehicle on the highway, the longer the braking distance required for emergency braking. The eighth tenth article of the "road traffic safety law enforcement regulation complete text": the motor vehicle runs on the expressway, the distance between the motor vehicle and the vehicle ahead of the same lane should be kept over 100 meters when the speed of the motor vehicle exceeds 100 kilometers per hour, the distance between the motor vehicle and the vehicle ahead of the same lane can be properly shortened when the speed of the motor vehicle is lower than 100 kilometers per hour, but the minimum distance is not less than 50 meters. According to statistics, the factors of serious safety accidents on the expressway often include overspeed driving and too short safety distance, wherein the motor vehicle overspeed driving monitoring system is widely applied to the expressway, but if two vehicles do not keep enough safety distance, the driving safety can still not be guaranteed. The loss of the driving safety distance monitoring system causes some drivers to have lucky psychology, which causes great threat to the life and property safety of the drivers and others.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a driving interval monitoring system can monitor the driving interval of two motor vehicles.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a traffic space monitoring system comprises a radar and a camera which are arranged above a road to be detected, wherein the detection direction of the radar and the shooting direction of the camera both point to the extending direction of the road to be detected, a reference line which is perpendicular to the extending direction of the road is arranged on the road to be detected, the reference line comprises a start line and a monitoring line, and the distance between the start line and the monitoring line is smaller than or equal to the minimum traffic space.
Compared with the prior art, the utility model discloses there are following technological effect: the arrangement of the monitoring system is reasonable, and the monitoring and evidence obtaining of the distance between the vehicles can be realized by combining one radar and one camera with a reference line; on the image shot by the radar detection trigger camera, whether the distance between the reference line and the motor vehicle meets the requirement or not can be directly judged according to the position relation between the reference line and the motor vehicle, and the evidence obtaining requirement can be met by one image.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic diagram of the present invention.
In the figure: 10. the method comprises the steps of a road to be detected, 20 radars, 30 cameras, 41 starting lines, 42 monitoring lines, 50 dividing lines, 60 signs and 70 supplementary lighting lamps.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
A driving distance monitoring system comprises a radar 20 and a camera 30 which are arranged above a road 10 to be detected, the detection direction of the radar 20 and the shooting direction of the camera 30 both point to the extending direction of the road 10 to be detected, a reference line 40 which is perpendicular to the extending direction of the road is arranged on the road 10 to be detected, the reference line 40 comprises a starting line 41 and a monitoring line 42, and the distance between the starting line 41 and the monitoring line 42 is smaller than or equal to the minimum driving distance.
When the method is implemented, the method comprises the following steps:
A. the radar 20 detects the speed of the motor vehicle passing through the detection area and the distance between the motor vehicle and the radar 20, and transmits the speed to the controller;
B. the controller calculates the distance between two adjacent motor vehicles and the speed of the rear vehicle, and judges whether the driving distance between the rear vehicle and the front vehicle meets the requirement;
if the speed of the rear vehicle is greater than 100 km/h and the distance between the rear vehicle and the front vehicle is less than 100m, or the speed of the rear vehicle is less than or equal to 100 km/h and the distance between the rear vehicle and the front vehicle is less than 50m, the driving distance between the rear vehicle and the front vehicle is judged to be not in accordance with the requirement, and the controller outputs an instruction to trigger the camera 30 to shoot the image.
As shown in fig. 1, in the present embodiment, two monitoring lines 42 are respectively disposed on the road 10 to be detected, and the distances between the two monitoring lines 42 and the start line 41 are 50m and 100m, respectively. In this way, from the picture taken by the camera 30, it can be directly judged whether the following distance between the reference line and the front vehicle meets the requirement or not according to the position relation between the reference line and the motor vehicle. To enhance forensic effectiveness, detection information from the radar 20 may be identified on or transmitted with the image, including, but not limited to, detection time, rear vehicle speed, rear vehicle to front vehicle spacing, and the like, of the radar 20.
In order to remind the driver of paying attention to the driving distance, and the distance between the monitoring line 42 and the start line 41, a sign 60 is arranged beside the road 10 to be detected corresponding to each reference line 40, starting characters or patterns are drawn on the sign 60 corresponding to the start line 41, and the distance between the monitoring line 42 and the start line 41 is marked on the sign 60 corresponding to the monitoring line 42. As shown in fig. 1, a 0m character is drawn on the indicator 60 adjacent to the start line 41 to indicate that the line is a distance determination start line, and a 50m character and a 100m character are correspondingly drawn on the indicator 60 adjacent to the monitoring line 42 to indicate that the line is a distance determination monitoring line.
In order to ensure that the image meeting the evidence obtaining requirement can be shot under the condition of lower brightness at night or in rainy days and the like, the light supplement lamps 70 are arranged beside the road 10 to be detected corresponding to the reference lines 40, and the emergent directions of the light supplement lamps 70 point to the reference lines 40. The reference line 40 and the rear license plate in the image obtained in the way are clear, and the evidence obtaining requirement is met.
In the embodiment, the distance requirements for motor vehicles at different speeds are different, and therefore two monitoring lines 42 are provided, for this reason, the light supplement lamp 70 is arranged at the side opposite to the sign 60, and the emitting direction of the light supplement lamp 70 points to the reference line 40 and the sign 60 corresponding to the reference line. The distance between the reference lines 40 in the image obtained in this way is more definite, and the distance range between the motor vehicle and the front vehicle can be more clearly judged.
The road 10 to be measured is provided with a boundary line 50 parallel to the extending direction of the road, and the two boundary lines 50 are arranged at the boundary of the road 10 to be measured and intersect with the reference line 40. The boundary line 50 is a solid line, so that when vehicles in adjacent lanes change into lanes and enter the road 10 to be tested, the intersection of the vehicle body and the dashed boundary line is a blank area, and the evidence obtaining and judgment of the inter-vehicle distance are influenced.
As shown in fig. 1, the line body of the start line 41 and the monitoring line 42 extends out of the boundary line 50 in the road 10 to be measured, that is, the length of the reference line 40 is greater than the width of the road 10 to be measured, which facilitates the judgment of the position relationship between the motor vehicle with the vehicle body width greater than the width of the road 10 to be measured and the reference line 40, so that the personnel can visually confirm whether the inter-vehicle distance between the motor vehicle and the preceding vehicle meets the requirement.
In order to further improve the image evidence obtaining effect, the radar 20 continuously detects the information of the vehicle speed, the distance between the vehicle and the radar 20 and the like in the detection area when in use. In the foregoing step B, after the controller determines that the following distance between the following vehicle and the preceding vehicle is not in accordance with the requirement, the controller determines, by combining the detection data uploaded by the radar 20, whether the following vehicle crosses the start line 41, and when the following vehicle crosses the start line 41, the controller outputs an instruction to trigger the camera 30 to shoot an image, so that on the obtained image, the vehicle body of the following vehicle has completely crossed the start line 41, and if the preceding vehicle has not crossed the corresponding monitoring line 42, then, the following distance between the following vehicle is inevitably not in accordance with the requirement, thereby directly determining whether the following vehicle satisfies the following distance requirement according to the image.
In this embodiment, the radar 20 and the camera 30 are disposed in front of the start line 41, the start line 41 is located in the detection area of the radar 20, and when the distance between the rear end of the vehicle and the radar 20 is greater than the distance between the start line 41 and the radar 20, it is determined that the vehicle passes over the start line 41, and the controller outputs a command to trigger the camera 30 to capture an image.
In other embodiments, a sensor may be disposed at the start line 41 or other means known in the art to determine whether the vehicle crosses the start line 41.
In this embodiment, no other device is needed to be arranged at the start line 41, and the following distance monitoring of one lane or multiple lanes can be completed only by arranging a group of radars 20 and cameras 30 in combination with the reference line and the boundary line, so that the investment and maintenance cost is low, the evidence obtaining effect is strong, and the popularization and the application are convenient.
Claims (7)
1. A following distance monitoring system is characterized in that: the road traffic monitoring system comprises a radar (20) and a camera (30) which are arranged above a road (10) to be detected, wherein the detection direction of the radar (20) and the shooting direction of the camera (30) point to the extending direction of the road (10) to be detected, a reference line (40) which is perpendicular to the extending direction of the road is arranged on the road (10) to be detected, the reference line (40) comprises a start line (41) and a monitoring line (42), and the distance between the start line (41) and the monitoring line (42) is smaller than or equal to the minimum traffic distance.
2. A following distance monitoring system according to claim 1, characterized in that: signs (60) are arranged beside the road (10) to be detected corresponding to the reference lines (40), starting characters or patterns are drawn on the signs (60) corresponding to the starting lines (41), and the spaces between the monitoring lines (42) and the starting lines (41) are marked on the signs (60) corresponding to the monitoring lines (42).
3. A following distance monitoring system according to claim 2, characterized in that: and a light supplement lamp (70) is arranged beside the road (10) to be detected corresponding to each reference line (40), and the emergent direction of the light supplement lamp (70) points to the reference line (40).
4. A following distance monitoring system according to claim 3, characterized in that: the light supplement lamp (70) is arranged at the side opposite to the sign (60), and the emergent direction of the light supplement lamp (70) points to the reference line (40) and the sign (60) corresponding to the reference line.
5. A following distance monitoring system according to claim 1, characterized in that: the road (10) to be detected is provided with a boundary (50) parallel to the extending direction of the road, the boundary (50) is a solid line, and the two boundary lines (50) are arranged at the boundary of the road (10) to be detected and are intersected with the reference line (40).
6. A following distance monitoring system according to claim 1, characterized in that: the length of the reference line (40) is greater than the width of the road (10) to be measured.
7. A following distance monitoring system according to claim 1, characterized in that: the radar (20) and the camera (30) are disposed on the front side of a start line (41), and the start line (41) is located within the detection area of the radar (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465114.4U CN211555113U (en) | 2020-04-01 | 2020-04-01 | Vehicle-following distance monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465114.4U CN211555113U (en) | 2020-04-01 | 2020-04-01 | Vehicle-following distance monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211555113U true CN211555113U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020465114.4U Expired - Fee Related CN211555113U (en) | 2020-04-01 | 2020-04-01 | Vehicle-following distance monitoring system |
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| Country | Link |
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| CN (1) | CN211555113U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111325985A (en) * | 2020-04-01 | 2020-06-23 | 安徽文康科技有限公司 | System and method for monitoring distance between vehicles |
-
2020
- 2020-04-01 CN CN202020465114.4U patent/CN211555113U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111325985A (en) * | 2020-04-01 | 2020-06-23 | 安徽文康科技有限公司 | System and method for monitoring distance between vehicles |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 Termination date: 20210401 |