CN114604167A - Low-illumination environment car lamp projection system for traffic safety - Google Patents
Low-illumination environment car lamp projection system for traffic safety Download PDFInfo
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- CN114604167A CN114604167A CN202210230378.5A CN202210230378A CN114604167A CN 114604167 A CN114604167 A CN 114604167A CN 202210230378 A CN202210230378 A CN 202210230378A CN 114604167 A CN114604167 A CN 114604167A
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- 238000005286 illumination Methods 0.000 title claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0029—Spatial arrangement
- B60Q1/0035—Spatial arrangement relative to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to a low-illumination environment car lamp projection system facing traffic safety, which comprises a car lamp projection device for projecting preset patterns, a displacement sensor for receiving azimuth information of a front car and a self wheel offset angle, a distance sensor for identifying the distance from the front car or an obstacle, a speed detector for detecting the running speed of the self car and the front car, a camera for detecting an object in front of a car head and the identification of the front gradient of the car, and a central controller for processing comprehensive information collected by the displacement sensor, the distance sensor and the speed detector, wherein the distance sensor is used for detecting the distance between the front car head and the front car; and transmitting the comprehensive information collected by the displacement sensor, the distance sensor and the speed detector to a central processing unit, and controlling the car lamp projection device to project a planning scene to the road surface in front of the car according to a preset program by the central processing unit. The invention improves the simple lighting function of the car lamp and greatly improves the driving safety in dark environment.
Description
Technical Field
The invention relates to the field of traffic safety and automobile lamps, in particular to a low-illumination environment lamp projection system for traffic safety.
Background
With the continuous development of social production level and the increasing economic level, the automobile becomes an indispensable travel tool in daily life of people, and great convenience is provided for people to travel. At the same time, however, vehicle safety is also a focus of current interest. The conventional vehicle lamp merely provides a function of illumination to increase a visual range in a dark environment, and it is difficult to provide a driver with a driving assistance aid. Meanwhile, the technology of car light projection is being developed vigorously, and at present, in the technical field of car lights, car lights can realize projection of vehicle states and specific contents on the ground, but at present, projection is basically for aesthetic purposes, not for improving traffic safety. Particularly in some special situations, the possibility of traffic accidents is high.
Disclosure of Invention
The invention aims to provide a car lamp projection system for improving driving safety in a dark environment, which can improve the simple lighting function of a car lamp and greatly improve the driving safety in the dark environment.
The technical scheme adopted by the invention for solving the technical problems is as follows: the low-illumination environment car lamp projection system for traffic safety comprises a car lamp projection device for projecting preset patterns, a displacement sensor for receiving direction information of a front car and a self wheel offset angle, a distance sensor for identifying the distance from the front car or an obstacle, a speed detector for detecting the running speed of the front car and the self car, a camera for detecting the identification of an object in front of a car head and the front gradient of the car, and a central controller for processing comprehensive information collected by the displacement sensor, the distance sensor and the speed detector;
the car lamp projection device comprises a front projection device, a side projection device and a rear projection device, wherein the front projection device is arranged at a front headlight of the car, the side projection device is arranged on the b column, and the rear projection device is arranged at a rear tail lamp of the car;
the displacement sensors are arranged in front of the head of the vehicle and above the wheels, the distance sensors are arranged at an air inlet grille in front of the head of the vehicle, the speed detector is arranged at the air inlet grille in front of the head of the vehicle, the camera is arranged at the air inlet grille in front of the head of the vehicle, and the central controller is located at a vehicle-mounted computer of the vehicle;
the comprehensive information collected by the displacement sensor, the distance sensor and the speed detector is transmitted to a central processing unit, and the central processing unit controls a vehicle lamp projection device to project a planning scene to a road surface in front of the vehicle according to a preset program;
the scene comprises the following steps: the method comprises the following driving scene, the turning driving scene, the parking and getting-off scene, the vehicle fault scene, the up-down slope scene and the narrow road entering scene.
According to the scheme, the comprehensive information further comprises a cab switch of the vehicle, a switch of a left rear door, a switch of a secondary cab, a switch of a right rear door, a vehicle fault button coupling and a vehicle steering lamp coupling.
According to the scheme, the height-to-width ratio of the projected pattern of the car lamp projection device is 2.5: 1.
according to the scheme, the following driving scene is specifically as follows: the central controller projects a green simple sight distance identification line, a blue parking sight distance line, a yellow recommended following vehicle sight distance line and a red parking line from a vehicle near place to a vehicle far place in front of the vehicle on the basis of the driving speed of the vehicle and the distance between the central controller and the front vehicle, and the central controller projects different lengths according to different speeds and flickers at a frequency of 5hz when the distance between the central controller and the front vehicle is smaller than the distance between the central controller and the front vehicle.
According to the scheme, the turning driving scene specifically comprises the following steps: the preceding car light of vehicle is automatic to the skew of direction of turning to throw out the turn driving track of vehicle, the rear car light projection of vehicle goes out ground warning sign, warning sign satisfies that the pattern aspect ratio is 2.5: 1 under the condition of 1.
According to the scheme, the parking and getting-off scene specifically comprises the following steps: when the driver's cabin door of vehicle or left back door were opened, the rear left projection of vehicle was shown warning mark, when the copilot door of vehicle or left back door were opened, the rear left projection of vehicle was shown warning mark, warning mark satisfies the pattern aspect ratio and is 2.5: 1 under the condition of 1.
According to the scheme, the vehicle fault scene specifically comprises the following steps: the vehicle projected with an aspect ratio of 2.5 in front of and behind the vehicle: 1, triangle fault flag.
According to the scheme, the uphill and downhill scene specifically comprises the following steps: the left front lamp and the right front lamp of the vehicle are adjusted in angle upwards according to the slope of the uphill when going uphill, and are adjusted in angle downwards according to the slope of the downhill when going downhill.
According to the scheme, the narrow road entering scene specifically comprises the following steps: the central controller judges a front narrow road according to the camera, and controls the car lamp to project two forward straight lines, wherein the widths of the two straight lines are the sum of the delivery width of the car and the allowance of 10 cm.
According to the scheme, the central controller comprises an STM32F103C8 processor, and the STM32F103C8 processor is respectively connected with a bus, a memory and an I/O input/output interface.
The low-illumination environment vehicle lamp projection system for traffic safety has the following beneficial effects:
the low-illumination-level environment car lamp projection system for traffic safety is combined with scenes in which accidents are prone to happening in a dark environment, the driving safety in the dark environment can be improved to a great extent, compared with the traditional car headlamp, the driving environment can be reflected more visually, a driver is assisted in operating a car, the safety is improved, the scientific and technological sense of the car can be improved to a certain extent, and the operation confidence of the driver on the car can be enhanced.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block diagram schematically illustrating the structure of a low-light environment vehicle lamp projection system for traffic safety according to the present invention;
FIG. 2 is a normal driving scenario diagram of the present invention;
FIG. 3 is a diagram of a cornering scenario according to the invention;
FIG. 4 is a view of a parking alighting scenario of the present invention;
FIG. 5 is a vehicle fault scenario diagram of the present invention;
FIG. 6 is an uphill/downhill scene diagram of the present invention;
FIG. 7 is a diagram of the entry slot scenario of the present invention;
fig. 8 is a diagram of the warning sign projected onto the ground according to the present invention.
Detailed Description
For a more clear understanding of the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the low-illumination-level environment vehicle lamp projection system for traffic safety of the present invention includes a vehicle lamp projection device for projecting a predetermined pattern, a displacement sensor for receiving azimuth information of a preceding vehicle and an offset angle of wheels of the preceding vehicle, a distance sensor for identifying a distance from the preceding vehicle or an obstacle, a speed detector for detecting a traveling speed of the preceding vehicle and the preceding vehicle, and a camera for detecting an object in front of a vehicle head and a gradient in front of the vehicle, the displacement sensor being disposed right in front of the vehicle head and above the wheels, the distance sensor being disposed at an air intake grille in front of the vehicle head, the speed detector being disposed at the air intake grille in front of the vehicle head, the camera being disposed at the air intake grille in right in front of the vehicle head, and a central controller being disposed at a vehicle-mounted computer of the vehicle.
The car lamp projection device comprises a front projection device, a side projection device and a rear projection device, wherein the front projection device is arranged at a headlight in front of a car, the side projection device is arranged on a b column 30cm away from a car chassis, and the rear projection device is arranged at a tail lamp behind the car. The central controller is used for processing the comprehensive information collected by the displacement sensor, the distance sensor and the speed detector; the comprehensive information collected by the displacement sensor, the distance sensor and the speed detector is processed and transmitted to a central processing unit, and the central processing unit controls a vehicle lamp projection device to project a planning scene to a road surface in front of a vehicle according to a preset program; the integrated information also includes a cab switch, a left rear door switch, a copilot switch, a right rear door switch, a vehicle fault button coupling, and a vehicle turn signal coupling of the vehicle.
The scene comprises the following steps: the method comprises the following driving scene, the turning driving scene, the parking and getting-off scene, the vehicle fault scene, the up-down slope scene and the narrow road entering scene. The following driving scene is specifically as follows: the central controller projects a green simple sight distance identification line, a blue parking sight distance line, a yellow recommended following sight distance line and a red parking line from the near to the far of the vehicle in front of the vehicle on the basis of the running speed of the vehicle and the distance between the vehicle head and the front vehicle, and the central controller projects different lengths according to different speeds and flickers at the frequency of 5hz when the distance between the vehicle head and the front vehicle is smaller than the parking line. The turning driving scene is specifically as follows: the preceding car light of vehicle is automatic to the skew of direction of turning to throw out the turn driving track of vehicle, the rear car light projection of vehicle goes out ground warning sign, and warning sign satisfies that the pattern aspect ratio is 2.5: 1 under the condition of 1. The parking and getting-off scene specifically comprises the following steps: when the driver's cabin door of vehicle or left back door were opened, the warning sign was shown in the rear projection of vehicle left side, when the copilot door of vehicle or left back door were opened, the warning sign was shown in the rear projection of vehicle left side, and it is 2.5 to satisfy the pattern aspect ratio for the warning sign: 1 under the condition of 1. The vehicle fault scene specifically comprises: the vehicle projected with an aspect ratio of 2.5 in front of and behind the vehicle: 1 triangular fault flag. The scene of going up and down the slope specifically is: the left front lamp and the right front lamp of the vehicle are adjusted in angle upwards according to the slope of the uphill when going uphill, and are adjusted in angle downwards according to the slope of the downhill when going downhill. The narrow road entering scene is specifically as follows: the central controller judges a front narrow road according to the camera, and controls the car lamp to project two forward straight lines, wherein the widths of the two straight lines are the sum of the delivery width of the car and the allowance of 10 cm.
Lamps with projection functions are arranged on the side surfaces of the left headlamp, the right headlamp, the side surfaces of the left tail lamp and the right tail lamp at the rear and the positions, which are 30cm away from the vehicle chassis, on the column b. The aspect ratio of the pattern projected by the vehicle lamp projection device is 2.5: 1, the visibility is higher from the viewpoint of the driver of the rear vehicle, and the projection pattern is not limited to the warning mark. The central controller comprises an STM32F103C8 processor, and the STM32F103C8 processor is respectively connected with a bus, a memory and an I/O input/output interface.
The working process of the central controller is as follows: firstly, identifying information from an environment and a vehicle by a displacement sensor, a distance sensor, a speed detector and a camera, transmitting the information to a central controller, judging by the central controller according to the transmitted comprehensive information according to a preset program, and dividing the current environment into a following driving scene; a turning driving scene; parking and getting-off scenes; a vehicle fault scenario; an uphill and downhill scene; and entering six scenes of a narrow road scene, and after obtaining an instruction, sending an instruction by the central controller to project different patterns by the automobile lamps.
Under the normal driving scene: the central controller controls the vehicle lamp to project four straight lines with different distances according to the real-time speed of the vehicle, wherein a is a green simple sight distance identification line, b is a blue parking sight distance line, c is a yellow following suggested distance line, and d is a red necessary parking; the distance of the parking line for specific speed matching is shown in table 1.
TABLE 1 matching table of parking speed and distance between vehicles in front of vehicle
| Design speed (km/h) | 0-30 | 30-60 | 60+ |
| Simple identification stadia (m) | 100 | 170 | 200 |
| Parking stadia line (m) | 30 | 75 | 110 |
| Distance between the recommended car (m) | 20 | 50 | 100 |
| Emergency stop line (m) | 5 | 10 | 15 |
As shown in fig. 3, in the cornering scenario: the central controller controls the projection of the vehicle lamp according to the deviation angle of the wheels and the coupling of the steering lamp, and the front part of the vehicle is provided with an illumination area which is 10 degrees more than the steering angle direction of the vehicle except for a normal illumination area in front of the vehicle. Projecting a left-turn or right-turn sign behind, wherein the offset angle of the headlights of the vehicle is 10 degrees, and the aspect ratio of the pattern projected behind the vehicle is 2.5: 1, warning sign.
As shown in fig. 4, in a parking and getting-off scene, the central controller controls the projection of the car lights according to the closing of the left and right doors of the vehicle, and the projected pattern aspect ratio is 2.5 in the opening direction of the vehicle: 1, warning mark.
Under the vehicle fault scene: the central controller controls the projection of the vehicle lamp to form a projection with the height-width ratio of 2.5 at the rear of the vehicle according to the vehicle fault coupling button: 1, warning mark.
When climbing a slope and descending a slope: the central controller judges the uphill and downhill of the vehicle according to the camera, controls the headlights of the vehicle to adjust the angle upwards or downwards, and when the uphill in front is identified, the headlights are shifted upwards; when a downhill slope is recognized, the vehicle light is deflected downward.
When entering a narrow road scene: the central controller judges a front narrow road according to the camera, and controls the car lamp to project two forward straight lines, wherein the width of the two forward straight lines is the sum of the delivery width of the car and the allowance of 10 cm.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A low-illumination environment car light projection system facing traffic safety is characterized by comprising a car light projection device for projecting preset patterns, a displacement sensor for receiving azimuth information of a front car and a self wheel offset angle, a distance sensor for identifying the distance from the front car or an obstacle, a speed detector for detecting the running speed of the self car and the front car, a camera for detecting an object in front of a car head and the identification of the front gradient of the car, and a central controller for processing comprehensive information collected by the displacement sensor, the distance sensor and the speed detector;
the car lamp projection device comprises a front projection device, a side projection device and a rear projection device, wherein the front projection device is arranged at a headlight in front of the car, the side projection device is arranged on the b column, and the rear projection device is arranged at a tail lamp behind the car;
the displacement sensors are arranged in front of the head of the vehicle and above the wheels, the distance sensors are arranged at an air inlet grille in front of the head of the vehicle, the speed detector is arranged at the air inlet grille in front of the head of the vehicle, the camera is arranged at the air inlet grille in front of the head of the vehicle, and the central controller is located at a vehicle-mounted computer of the vehicle;
the comprehensive information collected by the displacement sensor, the distance sensor and the speed detector is transmitted to a central processing unit, and the central processing unit controls a vehicle lamp projection device to project a planning scene to a road surface in front of the vehicle according to a preset program;
the scene comprises the following steps: the method comprises the following driving scene, the turning driving scene, the parking and getting-off scene, the vehicle fault scene, the up-down slope scene and the narrow road entering scene.
2. The low-light environment vehicle lamp projection system for traffic safety according to claim 1, wherein the integrated information further comprises a cab switch, a left rear door switch, a front cab switch, a right rear door switch, a vehicle failure button coupling and a vehicle turn signal coupling of the vehicle.
3. A low-light environment vehicle lamp projection system facing traffic safety according to claim 1, wherein the aspect ratio of the pattern projected by the vehicle lamp projection device is 2.5: 1.
4. a vehicle light projection system for low-light environment facing traffic safety according to claim 1, wherein the following driving scene is specifically: the central controller projects a green simple visual range identification line, a blue parking visual range line, a yellow recommended following vehicle visual range line and a red parking line from a near place to a far place of the vehicle in front of the vehicle on the basis of the running speed of the vehicle and the distance between the vehicle head and the front vehicle, and the central controller projects different lengths according to different speeds and flickers at the frequency of 5hz when the distance between the central controller and the front vehicle is less than the distance between the central controller and the parking line.
5. The low-illuminance environment vehicle lamp projection system for traffic safety according to claim 4, wherein the turning driving scene is specifically: the preceding car light of vehicle is automatic to the skew of direction of turning to throw out the turn driving track of vehicle, the rear car light projection of vehicle goes out ground warning sign, warning sign satisfies that the pattern aspect ratio is 2.5: 1 under the condition of 1.
6. The low-illuminance environment vehicle lamp projection system for traffic safety as claimed in claim 1, wherein the parking and getting-off scene is specifically: when the driver's cabin door or the left back door of vehicle were opened, the rear left projection of vehicle was shown and is warned the sign, and when the copilot door or the left back door of vehicle were opened, the rear left projection of vehicle was shown and is warned the sign, it is 2.5 to satisfy the pattern aspect ratio to warn the sign: 1 under the condition of 1.
7. The low-illumination environment vehicle lamp projection system oriented to traffic safety of claim 1, wherein the vehicle fault scene is specifically: the vehicle projected with an aspect ratio of 2.5 in front of and behind the vehicle: 1, triangle fault flag.
8. The low-illuminance environment vehicle lamp projection system for traffic safety as claimed in claim 1, wherein the up-down slope scene is specifically: the left front lamp and the right front lamp of the vehicle are adjusted in angle upwards according to the slope of the uphill when going uphill, and are adjusted in angle downwards according to the slope of the downhill when going downhill.
9. The low-illuminance environment vehicle lamp projection system for traffic safety as claimed in claim 1, wherein the narrow-road entering scene is specifically: the central controller judges a front narrow road according to the camera, and controls the car lamp to project two forward straight lines, wherein the widths of the two straight lines are the sum of the delivery width of the car and the allowance of 10 cm.
10. A traffic safety-oriented low-light environment vehicle lamp projection system according to claim 1, wherein the central controller comprises an STM32F103C8 processor, and the STM32F103C8 processor is respectively connected with a bus, a memory and an I/O input/output interface.
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Cited By (1)
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| CN117656986A (en) * | 2024-01-31 | 2024-03-08 | 成都赛力斯科技有限公司 | Car lamp control method, device and equipment based on barrier and storage medium |
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| CN117656986B (en) * | 2024-01-31 | 2024-04-16 | 成都赛力斯科技有限公司 | Car lamp control method, device and equipment based on barrier and storage medium |
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| Publication number | Publication date |
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| CN114604167B (en) | 2024-05-28 |
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