WO2017000389A1 - 行车安全指示系统 - Google Patents

行车安全指示系统 Download PDF

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Publication number
WO2017000389A1
WO2017000389A1 PCT/CN2015/089578 CN2015089578W WO2017000389A1 WO 2017000389 A1 WO2017000389 A1 WO 2017000389A1 CN 2015089578 W CN2015089578 W CN 2015089578W WO 2017000389 A1 WO2017000389 A1 WO 2017000389A1
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WO
WIPO (PCT)
Prior art keywords
motor
mirror
light
control unit
light source
Prior art date
Application number
PCT/CN2015/089578
Other languages
English (en)
French (fr)
Inventor
曾林旺
Original Assignee
曾林旺
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 曾林旺 filed Critical 曾林旺
Publication of WO2017000389A1 publication Critical patent/WO2017000389A1/zh

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Classifications

    • 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
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems

Definitions

  • the invention relates to the technical field of automobile equipment, in particular to a driving safety indicating system.
  • the car lighting system is one of the necessary systems for safe driving of automobiles.
  • the car lighting system includes external lighting fixtures, internal lighting fixtures, external signal lamps, and internal signal lamps. It is divided into headlights and fog lamps according to the position and function of installation. , license plate lights, instrument lights, ceiling lights, work lights, etc., the main function of the existing lighting system is to provide drivers with a vision and provide warning for other vehicles or pedestrians, the existing car lighting system in the judgment and operation of the driver There is limited help, and drivers can only deal with various problems based on what the naked eye sees and limited experience.
  • Driving safety indication system including:
  • the control unit respectively receives signals of the navigation module, the speed sensing module and the angle sensing module, and controls a light projection direction and a form of the light projection head;
  • a navigation module electrically connected to the control unit for transmitting a vehicle position signal to the control unit;
  • a speed sensing module electrically connected to the control unit for transmitting a vehicle speed signal to the control unit
  • An angle sensing module electrically connected to the control unit for transmitting a vehicle steering signal to the control unit;
  • At least two light projection heads are electrically connected to the control unit for receiving the control signals of the control unit and projecting the light onto the road surface.
  • the navigation module is a navigator and the control unit is a controller with a touch display.
  • the light projection head is a laser projector using a projection principle or a single-line motion laser contour scanning laser projector or a dual-axis scanning motion superimposed laser projector.
  • the speed sensing module comprises a speed sensing block and a speed sensor.
  • the speed sensing block is mounted on the driving shaft of the automobile, and the speed sensing block, the speed sensor and the control unit are electrically connected in sequence;
  • the angle sensing module comprises an angle sensing block and an angle sensor, and the angle sensing block Installed on the steering shaft of the car, the angle sensing block, the angle sensor and the control unit are electrically connected in sequence.
  • the light projection head comprises a box body, a light source and a light angle adjusting device.
  • the light source and the light angle adjusting device are all installed in the box body, the light angle adjusting device is electrically connected to the control unit, and the light projecting hole is opened in the front of the box body, and the light projection is performed.
  • a protective lens is mounted on the hole, and the protective lens adopts a zoom curved protective lens; the light source is a laser emitter.
  • the light angle adjusting device includes a first motor, a second motor, a first mirror and a second mirror, and the first mirror and the second mirror are respectively mounted on the rotating shafts of the first motor and the second motor, and the second
  • the motor and the first motor are perpendicular to each other, the first mirror and the second mirror are perpendicular to each other, the second mirror is disposed directly behind the light projection hole, the first mirror is disposed directly below the second mirror, and the light source is disposed at a side of the first mirror and the light source is perpendicular to the first mirror, the light source emits light to the first mirror, the first mirror reflects the light to the second mirror, and the second mirror reflects the light and projects from the light
  • the holes are emitted; the first motor and the second motor are both servo motors and are electrically connected to the control unit.
  • the light angle adjusting device further comprises an auxiliary fixing seat, wherein the auxiliary fixing seat is composed of a left side plate, a right side plate and a rear side plate, the first motor is located between the rear side plate and the rear of the box body, and the second motor is located at the right side Between the side plate and the left side of the box, the right side plate and the rear side plate are provided with a shaft hole, the rotating shaft of the first motor passes through the shaft hole of the rear side plate, and the first mirror is installed at one end of the first motor rotating shaft passing through the shaft hole, The rotating shaft of the second motor passes through the shaft hole of the right side plate, and the second mirror is installed at one end of the second motor rotating shaft passing through the shaft hole; the left side plate defines a light source mounting hole, and the light source is fixed on the light source mounting hole and the light source The first mirror is perpendicular to the first mirror; a camera is fixed to the front of the box, and the camera is electrically connected to the control unit.
  • the auxiliary fixing seat is composed of a
  • the light angle adjusting device includes a first motor, a second motor, a first mirror, a second mirror, and a motor driver, and the first mirror and the second mirror are respectively mounted on the rotating shafts of the first motor and the second motor
  • the second motor and the first motor are perpendicular to each other, the first mirror and the second mirror are perpendicular to each other, the second mirror is disposed directly behind the light projection hole, and the first mirror is disposed directly below the second mirror.
  • a light source fixing seat is disposed on a side of the first mirror, the light source is mounted on the top of the light source fixing seat, a fourth mirror is disposed in the light source fixing seat, and the fourth mirror reflects the light source light to the first mirror, the first mirror Reflecting light to the second mirror, the second mirror reflects the light and exits the light projection hole;
  • the first motor and the second motor are both servo motors and are electrically connected to the motor driver, and the motor driver and the control unit are electrically connection.
  • the light angle adjusting device further comprises an auxiliary fixing seat, wherein the auxiliary fixing seat is composed of a left side plate, a right side plate and a rear side plate, the first motor is located between the rear side plate and the rear of the box body, and the second motor is located at the right side Between the side plate and the left side of the box, the right side plate and the rear side plate are provided with a shaft hole, the rotating shaft of the first motor passes through the shaft hole of the rear side plate, and the first mirror is installed at one end of the first motor rotating shaft passing through the shaft hole, The rotating shaft of the second motor passes through the shaft hole of the right side plate, and the second mirror is installed at one end of the second motor rotating shaft passing through the shaft hole; the left side plate defines a light source injection hole, and the light source fixing seat is opposite to the injection hole The fourth mirror reflects the light source light through the injection hole to the first mirror; a camera is fixed to the front of the box, and the camera is electrically connected to the control unit.
  • the auxiliary fixing seat is composed of
  • a laser ranging sensor is further mounted in the box, and the laser ranging sensor is electrically connected to the control unit.
  • the light angle adjusting device comprises a third motor, a motor support frame, a fourth motor, a rotating frame, a light source mounting frame and a rotation scanning sensor, wherein the third motor is hung upside down on the top surface of the box through the motor support frame, and the rotating scanning sensor is fixed on the motor a support frame;
  • the rotating frame comprises a connecting plate, a fourth motor mounting plate and a weight plate, the connecting plate is fixed on the rotating shaft of the third motor, and the fourth motor mounting plate and the weight plate are respectively fixed at the two ends of the connecting plate
  • the fourth motor mounting plate defines a shaft hole, the fourth motor is mounted on the fourth motor mounting plate, and the rotating shaft of the fourth motor passes through the shaft hole of the fourth motor, and the light source mounting bracket is fixed at one end of the fourth motor rotating shaft passing through the shaft hole;
  • the light source is mounted on the light source mounting bracket, the light source and the fourth motor rotating shaft are perpendicular to each other, and the third motor and the fourth motor are both servo motors and are electrically
  • the light source mounting bracket defines a mounting hole for mounting with the light source, and a laser ranging sensor is further mounted on the edge of the mounting hole, and the laser distance measuring sensor is electrically connected to the control unit.
  • the light projection head further includes a box angle adjusting device electrically connected to the control unit, the box angle adjusting device is fixed on the vehicle body, and the top of the box body is connected with the bottom of the box angle adjusting device to make the box body rotatable The way is fixed on the cabinet angle adjustment device.
  • the box angle adjusting device comprises a fifth motor and a motor fixing frame
  • the fifth motor is electrically connected to the control unit
  • the fifth motor fixing frame is fixed to the vehicle body
  • the fifth motor is installed in the motor fixing frame
  • the fifth motor The rotating shaft is perpendicular to the ground, and the top of the box is fixed on the rotating shaft of the fifth motor.
  • the system also includes a vehicle steering system that is electrically coupled to the control unit.
  • the system also includes a body height detection module electrically coupled to the control unit.
  • the vehicle body height detecting module is a distance measuring sensor, and the distance measuring sensor is installed at the bottom of the vehicle.
  • the speed sensing module sends the car speed signal to the control unit
  • the angle sensing module sends the car steering signal to the control unit
  • the navigation module sends the car position signal to the control unit
  • the control unit integrates the vehicle speed, angle and position.
  • the speed sensor module sends the car speed signal to the control unit
  • the angle sensor module sends the car turn signal to the control unit
  • the navigation module sends the navigation route information to the control unit, the control unit according to the current speed and navigation
  • the route analyzes the required steering position on the navigation route, the time to reach the turning point, and then controls the light projection module to project the corresponding steering light in advance when the vehicle is about to reach the turning point, and the light not only indicates a safe driving distance for the vehicle, It can also indicate the steering position and angle of the vehicle, and the driver can respond in advance according to the warning light of the warning, such as deceleration, avoidance, etc.;
  • the navigation module sends the safe vehicle speed signal of the current road section to the control unit according to the navigation system.
  • the control unit compares and analyzes the current vehicle speed signal and the angle signal with the safe vehicle speed, and controls during the overspeed driving.
  • the unit controls the light projection head to project an alarm light, which may be in the form of light and dark changes or flicker, and the driver receives the feedback alarm relationship information to decelerate.
  • the present invention is not limited to the above several modes of operation.
  • the present invention controls the light projection head to project light of different shapes, frequencies, brightnesses, and angles to the ground, and the light can indicate to the driver that the current or subsequent various road conditions are
  • the safety vehicle distance, the vehicle speed, the steering angle and the like, the number of the light projection heads of the present invention on the vehicle and the installation position can also be selected according to different vehicles and different needs.
  • the invention has the beneficial effects that the invention fully utilizes the original structure of the vehicle, and the control unit receives the signals of the navigation module, the speed sensing module and the angle sensing module, and according to the vehicle state information provided by the modules, the control unit sends the light to the plurality of light projection heads.
  • the control signal is sent, and the light projection head projects the light onto the road surface according to the control signal, and the light provides the optimal driving path, the distance and the direction of the vehicle, thereby ensuring driving safety, reducing the driver's operation error and tension, and avoiding a car accident.
  • Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Embodiment 1 of the present invention is a schematic structural view of Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural view of a light projection head according to an embodiment of the present invention.
  • Figure 4 is a plan view of the first embodiment of the present invention.
  • Figure 5 is a schematic structural view of a first embodiment of the present invention.
  • Figure 6 is a schematic structural view of Embodiment 2 of the present invention.
  • FIG. 7-8 are schematic structural views of a light projection head according to Embodiment 2 of the present invention.
  • FIG. 9 are schematic diagrams showing the structure of a light projection head according to Embodiment 3 of the present invention.
  • Control unit 1 touch screen display 11, navigation module 2, speed sensing module 3, speed sensing block 31, speed sensor 32, angle sensing module 4, angle sensing block 41, angle sensor 42, light projection head 5, housing 51, Light projection hole 511, protective lens 512, optical angle adjusting device 52, first motor 521, second motor 522, first mirror 523, second mirror 524, third motor 525, motor support frame 526, fourth motor 527, rotating frame 528, connecting plate 5281, fourth motor mounting plate 5282, weight plate 5283, light source mounting bracket 529, mounting hole 5921, rotation scanning sensor 530, laser ranging sensor 531, light source 53, auxiliary fixing seat 54, The left side plate 541, the right side plate 542, the rear side plate 543, the light source mounting hole 544, the camera 55, the light source fixing seat 56, the fourth mirror 57, the motor driver 58, the box angle adjusting device 59, the motor fixing seat 591, The fifth motor 592, the vehicle steering system 6, and the vehicle body height detecting module 7.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the driving safety indication system disclosed in the first embodiment of the present invention includes:
  • the control unit 1 receives signals of the navigation module 2, the speed sensing module 3 and the angle sensing module 4, and controls the light projection direction and form of the light projection head 5;
  • the control unit 1 is a controller with a touch display screen 11, which can The controller is installed in the car to facilitate the driver's control;
  • the navigation module 2 is electrically connected to the control unit 1 for transmitting a vehicle position signal to the control unit 1.
  • the navigation module 2 is a navigation device, and the navigation device can provide information such as a navigation route, a vehicle position, and a road condition to the controller.
  • the speed sensing module 3 is electrically connected to the control unit 1 for transmitting a vehicle speed signal to the control unit 1.
  • the speed sensing module 3 of the embodiment includes a speed sensing block 31 and a speed sensor 32, and the speed sensing block 31 is mounted on the automobile transmission shaft.
  • the speed sensing block 31, the speed sensor 32 and the control unit 1 are sequentially electrically connected, the speed sensing block 31 obtains the vehicle speed information, the speed sensor 32 sends the vehicle speed signal to the control unit 1;
  • the angle sensing module 4 is electrically connected to the control unit 1 for transmitting a vehicle steering signal to the control unit 1.
  • the angle sensing module 4 of the embodiment includes an angle sensing block 41 and an angle sensor 42.
  • the angle sensing block 41 is mounted on the steering shaft of the automobile.
  • the angle sensing block 41, the angle sensor 42 and the control unit 1 are sequentially electrically connected, the angle sensing block 41 obtains the vehicle steering angle information, the angle sensor 42 sends the steering signal to the control unit 1;
  • the number of the light projection heads 5 of the embodiment is four, the number of the light projection heads 5 and the installation position can be selected as needed;
  • the light projection head 5 of the embodiment includes the box 51 and the light source 53.
  • the light angle adjusting device 52, the light source 53 and the light angle adjusting device 52 are both mounted in the casing, the light angle adjusting device 52 is electrically connected to the control unit 1, and the control unit 1 transmits a control signal to the light angle adjusting device 52.
  • a light projection hole 511 is defined in the front surface of the casing 51, and a protective lens 512 is mounted on the light projection hole 511.
  • the protective lens 512 adopts a zoom curved surface protection lens, and the zoom curved surface protection lens has a function of focusing light to enhance the light intensity;
  • the optical angle adjusting device 52 includes a first motor 521, a second motor 522, a first mirror 523, and a second mirror 524, and the first mirror 523 and the second mirror 524 are respectively mounted on On the rotating shafts of the first motor 521 and the second motor 522, the second motor 522 and the first motor 521 are perpendicular to each other, and the first mirror 523 and the second mirror 524 are perpendicular to each other, and the second mirror 524 is disposed at the light projecting hole 511.
  • the first mirror 523 is disposed directly below the second mirror 524, the light source 53 is disposed on the side of the first mirror 523 and the light source is perpendicular to the first mirror 523, and the light source 53 emits light to the first
  • the mirror 523 reflects the light to the second mirror 524.
  • the second mirror 524 reflects the light and then exits the light projection hole 511.
  • the first motor 521 and the second motor 522 are servo motors. And control Electrically connecting element.
  • the first motor 521 and the second motor 522 are controlled by the control unit 1, and the rotation of the first motor 521 shaft and the second motor 522 shaft respectively drives the first mirror 523 and the second
  • the light source 53 emits a vertical beam from the side of the first mirror 523, is reflected by the first mirror 523, and then is incident on the second mirror 524, is reflected by the second mirror 524, and is projected from the light in front of it.
  • the hole 511 is emitted and finally projected onto the road surface, so that the control unit 1 controls the rotation positions of the first mirror 523 and the second mirror 524 by controlling the rotation of the first motor 521 and the second motor 522, and finally realizes projection to
  • the control of the light of the road surface controls the first motor 521 and the second motor 522 to rotate back and forth.
  • the rotation frequency is fast enough to cause the light to project an indication route on the road surface.
  • the indication route is consistent with the vehicle walking direction, it indicates The driving route of the vehicle, which can also indicate the distance between the vehicle and the object in front, thereby providing the driver with a reference and indication of safe driving.
  • the control of the motor speed in the projection head 5 by the control unit 1 is based on the vehicle travel section information, the vehicle speed information and the travel route information detected by the navigation module 2, the speed sensing module 3 and the angle sensing module 4.
  • the light angle adjusting device 52 further includes an auxiliary fixing seat 54 composed of a left side plate 541, a right side plate 542 and a rear side plate 543, and the first motor 521 is located at the rear side.
  • the second motor 522 is located between the right side plate 542 and the left side of the box 51, and the right side plate 542 and the rear side plate 543 are provided with shaft holes (not shown), the first motor.
  • the rotating shaft of the 521 passes through the shaft hole of the rear side plate 543, the first mirror 523 is mounted at one end of the rotating shaft of the first motor 521 through the shaft hole, and the rotating shaft of the second motor 522 passes through the shaft hole of the right side plate 542, and the second reflection
  • the mirror 524 is mounted on one end of the shaft of the second motor 522 through the shaft hole.
  • the left side plate 541 defines a light source mounting hole 544.
  • the light source 53 is fixed on the light source mounting hole 544 and the light source 53 and the first mirror 523 are perpendicular to each other.
  • a camera 55 is fixed to the front of the box 51, the camera 55 is electrically connected to the control unit 1, and the camera 55 takes a picture of the road ahead of the vehicle and sends it to the control unit.
  • the control unit 1 combines the photo information, the current vehicle speed angle information and the previously set The ideal road condition information is analyzed to determine whether the traffic ahead is safe. When it is not safe, the control light projection head 5 projects a specified light to remind the driver to make an early response, and an accident caused by an unexpected situation occurs.
  • the system further includes a vehicle steering system 6 electrically connected to the control unit 1, and a control signal can be sent to the vehicle steering system 6 through the control unit 1, so that the vehicle steering system 6 cooperates with the projection head 5, as needed in the front road section.
  • the control unit 1 controls the projection head 5 to project the light indicating the forward steering direction in advance, and the steering light of the corresponding direction of the vehicle steering system 6 is automatically illuminated.
  • This setting allows the driver to maintain good driving habits, and the curve is traffic.
  • the high-incidence section of the accident before the curve is entered, the system gives the driver a reminder and instructions to help the driver to maintain correct operation and ensure driving safety.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the light angle adjusting device 52 includes a first motor 521, a second motor 522, a first mirror 523, a second mirror 524, and a motor driver 58, a first mirror 523 and a second
  • the mirrors 524 are respectively mounted on the rotating shafts of the first motor 521 and the second motor 522, the second motor 522 and the first motor 521 are perpendicular to each other, and the first mirror 523 and the second mirror 524 are perpendicular to each other, and the second mirror 524 is perpendicular to each other.
  • the first reflecting mirror 523 is disposed directly below the second reflecting mirror 524, and a light source fixing seat 56 is disposed on the side of the first reflecting mirror 523.
  • the light source 53 is mounted on the top of the light source fixing base 56.
  • a fourth mirror 57 is disposed in the light source fixing seat 56.
  • the fourth mirror 57 reflects the light of the light source 53 to the first mirror 523, and the first mirror 523 reflects the light to the second mirror 524, and the second reflection
  • the mirror 524 reflects the light and then exits the light projection hole 511.
  • the first motor 521 and the second motor 522 are both servo motors and are electrically connected to the motor driver 58, and the motor driver 58 is electrically connected to the control unit 1.
  • the optical angle adjusting device 52 of the present embodiment further includes an auxiliary fixing base 54 composed of a left side plate 541, a right side plate 542 and a rear side plate 543, and the first motor 521 is located.
  • the second motor 522 is located between the right side plate 542 and the left side of the casing 51, and the right side plate 542 and the rear side plate 543 are provided with shaft holes (not shown),
  • the shaft of the motor 521 passes through the shaft hole of the rear side plate 543
  • the first mirror 523 is mounted at one end of the shaft of the first motor 521 through the shaft hole
  • the shaft of the second motor 522 passes through the shaft hole of the right side plate 542.
  • the second mirror 524 is mounted on one end of the shaft of the second motor 522 passing through the shaft hole; the left side plate 541 defines a light source injection hole (not shown), and the light source fixing seat 56 is opposite to the light source injection hole, and the fourth The mirror 57 reflects the light source light through the light source entrance hole to the first mirror 523.
  • a laser ranging sensor 531 is further mounted in the casing 51 of the embodiment, and the laser ranging sensor 531 is electrically connected to the control unit 1.
  • the system in this embodiment further includes a vehicle body height detecting module 7 electrically connected to the control unit 1 as shown in FIG. 6.
  • the vehicle body height detecting module 7 uses a distance measuring sensor, and the distance measuring sensor is installed at the bottom of the vehicle, and the projection head 5 At the same height position, the vehicle body height detecting module 7 transmits a height signal to the control unit 1, and the control unit 1 adjusts the projection angle of the light projecting head 5 in accordance with the actual height.
  • the light projection head 5 further includes a box angle adjusting device 59 electrically connected to the control unit 1.
  • the box angle adjusting device 59 is fixed on the vehicle body, and the top of the box body 51 is connected to the bottom of the box angle adjusting device 59 to make the box
  • the body 51 is rotatably fixed to the box angle adjusting device.
  • the box angle adjusting device 59 includes a fifth motor 592 and a motor fixing frame 591.
  • the motor fixing frame 591 is fixed on the vehicle body.
  • the motor 592 is mounted in the motor holder 591, the fifth motor 592 is electrically connected to the control unit 1, the rotating shaft of the fifth motor 592 is perpendicular to the ground, and the top of the box 51 is fixed on the rotating shaft of the fifth motor 592, and the control unit 1 Control the rotation of the fifth motor 592 to drive the box 51 to rotate, thereby controlling the direction in which the box 51 is projected, and realizing that the light is projected from any angle of the vehicle body to expand the range of the indicating light.
  • the adjustment and control of the ray angle in the light projection head 5 of the embodiment is the same as that of the first embodiment, except that the light of the light source 53 of the present embodiment is reflected by the fourth mirror 57 to the first mirror 523.
  • the embodiment also measures the distance between the light projection head 5 and the ground by the laser ranging sensor 531, thereby obtaining the distance between the vehicle and the light projection point, which can be compared with the safety distance to determine the safety of the driving distance.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the driving safety indication system disclosed in the third embodiment is substantially the same as the second embodiment, except that:
  • a light projection hole 511 is defined in the front surface of the housing 51, and a protective lens 512 is mounted on the light projection hole 511.
  • the optical angle adjustment device 52 includes a third motor 525, a motor support frame 526, and a second The fourth motor 527, the rotating frame 528, the light source mounting bracket 529 and the rotation scanning sensor 530, the third motor 525 is hung upside down on the top surface of the casing 51 through the motor supporting frame, and the rotating scanning sensor 530 is fixed on the motor supporting frame 526; the rotating frame 528 includes The connecting plate 5281, the fourth motor mounting plate 5282 and the weight plate 5283, the connecting plate 5281 is fixed on the rotating shaft of the third motor 525, and the fourth motor mounting plate 5282 and the weight plate 5283 are respectively fixed at the two ends of the connecting plate 5281.
  • the fourth motor mounting plate 5282 defines a shaft hole (not shown), the fourth motor 527 is mounted on the fourth motor mounting plate 5282, and the rotating shaft of the fourth motor 527 passes through the shaft hole of the fourth motor 527, and the light source mounting bracket 529 is fixed to one end of the fourth motor 527 rotating shaft passing through the shaft hole; the light source 53 is mounted on the light source mounting frame 529, the rotating shafts of the light source 53 and the fourth motor 527 are perpendicular to each other, and the third motor 525 and the fourth motor 527 are both Servo motor 1 is electrically connected to the control unit, scanning the rotation sensor 530 is also electrically connected to the control unit 1.
  • the light source 53 is a laser emitter.
  • the light source mounting bracket 529 defines a mounting hole 5291 for mounting with the light source 53.
  • a laser ranging sensor 531 is further mounted on the edge of the mounting hole 5291. The laser ranging sensor 531 is electrically connected to the control unit 1.
  • the light projection and the angle adjustment are different from those of the first embodiment and the second embodiment.
  • the process is as follows: the rotation of the third motor 525 shaft and the fourth motor 527 shaft is controlled by the control unit 1, and the third The motor 525 is hung upside down on the top surface of the casing 51.
  • the third motor 525 is in operation, the motor support frame 526 and the fourth motor 527 rotate along with the rotating shaft of the third motor 525, and the rotating shaft of the fourth motor 527 rotates at the same time to drive the light source 53 and
  • the laser ranging sensor 531 rotates, and the light source 53 directly emits the light beam from the light projecting hole.
  • the light of the embodiment does not need to be reflected, but the change of the light exit angle is realized by directly adjusting (rotating) the position of the light source 53.
  • the distance information indicating the ray projection point and the vehicle is also acquired by the laser ranging sensor 531, and the position information after the rotation of the light source is obtained by the rotation scanning sensor 530, and the information is returned to the control unit 1, and the control unit 1 can determine the ray light of the circumstance. Whether it is light of a specified position, shape, or angle.
  • the light projection head 5 of the embodiment further includes a box angle adjusting device 59 electrically connected to the control unit 1.
  • the box angle adjusting device 59 is fixed on the vehicle body, and the top of the box 51 and the bottom of the box angle adjusting device 59
  • the housing 51 is rotatably fixed to the cabinet angle adjusting device.
  • the box angle adjusting device 59 includes a fifth motor 592 and a motor mount 591.
  • the motor mount 591 is fixed to the vehicle body.
  • the fifth motor 592 is mounted in the motor holder 591, the fifth motor 592 is electrically connected to the control unit 1, the rotating shaft of the fifth motor 592 is perpendicular to the ground, and the top of the box 51 is fixed to the rotating shaft of the fifth motor 592.
  • the control unit 1 controls the rotation of the fifth motor 592 to drive the casing 51 to rotate, thereby controlling the direction in which the casing 51 is projected, thereby realizing that the light is projected from any angle of the vehicle body, and expanding the projection range of the indicating light.
  • the light projection head 5 employed in the present invention is not limited to those described in the first to third embodiments, and may be a laser projector using a projection principle or a single-line motion laser contour scanning laser projector or a two-axis scanning motion superimposed laser projector.
  • the invention can have the following modes of operation:
  • the speed sensing module 3 sends the car speed signal to the control unit 1
  • the angle sensing module 4 sends the car steering signal to the control unit 1
  • the navigation module 2 sends the car position signal to the control unit 1
  • the control unit 1 Integrating vehicle speed, angle and position information, the control light projection head 5 projects light at a specified angle and position of the current driving route in front of the vehicle, the light indicating a safe driving distance, a vehicle driving path and a vehicle speed, such as when When the light is projected to the rear of the vehicle, the distance between the vehicles is too small at the current speed;
  • the car speed signal is sent to the control unit 1 by the speed sensing module 3, the angle sensing module 4 sends the car steering signal to the control unit 1, and the navigation module 2 sends the information of the navigation route to the control unit 1, and controls
  • the unit 1 analyzes the required steering position on the navigation route and the time of reaching the turning point according to the current vehicle speed and the navigation route, and then controls the light projection module to project the corresponding steering light in advance when the vehicle is about to reach the turning point, the light is not only
  • the vehicle indicates a safe driving distance, and can also indicate the steering position and angle of the vehicle, and the driver responds in advance according to the warning light of the warning, such as deceleration, avoidance, etc.;
  • the navigation module 2 sends the safe vehicle speed signal of the current road section to the control unit 1 according to the navigation system, and the control unit compares and analyzes the current vehicle speed signal and the angle signal with the safe vehicle speed, and speeds
  • the control unit 1 controls the light projection head to project an alarm light, which may be in the form of light and dark change or flashing, and the driver receives the feedback alarm relationship information to decelerate.
  • the laser ranging sensor and the camera respectively feed back the collected distance and road condition information to the control unit 1, and the control unit 1 compares the actual distance and the safe distance.
  • the control projection head 5 When the vehicle is in the range of dangerous vehicle distance, the control projection head 5 emits corresponding indication light, and the control unit 1 compares the road condition information collected by the camera with the ideal road condition information provided by the navigation module. When the road condition changes, the control projection head 5 sends a corresponding signal. Indicates light.

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Abstract

一种行车安全指示系统，包括控制单元（1）、导航模块（2）、速度感应模块（3）、角度感应模块（4）及至少两个光投射头（5），导航模块（2）、速度感应模块（3）、角度感应模块（4）及光投射头（5）分别与控制单元（1）电连接。该行车安全指示系统能够根据车辆速度、转向角度以及位置等信息，给驾驶者指示出最安全、准确的行车路线，以提高行车安全性。

Description

行车安全指示系统 技术领域
本发明涉及汽车设备技术领域，特别涉及一种行车安全指示系统。
背景技术
随着人们经济水平的提升，拥有车辆的民众也越来越多，由于驾驶者的水平参差不齐，各类交通事故层出不穷，据统计，我国交通事故率正在逐年上升。
造成交通事故的原因很多，根据目前事故发生率来看，很多驾驶者是因为操作不当导致车祸的发生，例如：在拐弯处转向时机和角度控制不当、路况不熟、对车距的把握不准确、或者路面突然出现的障碍物使驾驶者反应不及等等因素，都能导致车祸发生。
汽车照明系统是汽车安全行驶的必备系统之一，汽车照明系统包括外部照明灯具、内部照明灯具、外部信号灯具、内部信号灯具，其按照安装的位置及功用有分为前照灯、雾灯、牌照灯、仪表灯、顶灯、工作灯等，现有的照明系统主要功能是为驾驶者提供视野以及为其他车辆或行人提供警示作用，现有的汽车照明系统在对驾驶员的判断和操作方面帮助有限，驾驶者只能根据肉眼所见和有限的经验来应对各种问题。
有鉴于此，本发明人着手于汽车安全方面的研究，特别研制出一种行车安全指示系统，以提升驾驶车辆的安全性，本案由此产生。
发明内容
本发明的目的在于提供一种行车安全指示系统，其能够根据车辆速度、转向角度以及位置等信息，给驾驶者指示出最安全、准确的行车路线，以提高行车安全性。
为了实现上述目的，本发明的技术方案如下：
行车安全指示系统，包括：
控制单元，分别接收导航模块、速度感应模块和角度感应模块的信号，控制光投射头的光线投射方向和形式；
导航模块，与控制单元电连接，用于向控制单元发送汽车位置信号；
速度感应模块，与控制单元电连接，用于向控制单元发送汽车速度信号；
角度感应模块，与控制单元电连接，用于向控制单元发送汽车转向信号；
及至少两个光投射头，均与控制单元电连接，用于接收控制单元的控制信号并将光线投射至路面。
所述导航模块为导航仪，控制单元为带有触摸显示屏的控制器。
所述光投射头为采用投影原理的激光投射器或单线运动激光轮廓扫描激光投射器或双轴扫描运动叠加激光投射器。
所述速度感应模块包括速度感应块和速度传感器，速度感应块安装在汽车传动轴上，速度感应块、速度传感器与控制单元依次电连接；角度感应模块包括角度感应块和角度传感器，角度感应块安装在汽车转向轴上，角度感应块、角度传感器与控制单元依次电连接。
所述光投射头包括箱体、光源和光角度调整装置，光源和光角度调整装置均安装在箱体中，光角度调整装置与控制单元电连接，所述箱体的前面开设光投射孔，光投射孔上安装防护透镜，该防护透镜采用变焦曲面防护透镜；所述光源为激光发射器。
所述光角度调整装置包括第一电机、第二电机、第一反射镜和第二反射镜，第一反射镜和第二反射镜分别安装在第一电机和第二电机的转轴上，第二电机与第一电机相互垂直，第一反射镜与第二反射镜相互垂直，第二反射镜设置在光投射孔的正后方，第一反射镜设置在第二反射镜的正下方，光源设置在第一反射镜的侧方且光源与第一反射镜垂直，光源将光线发射至第一反射镜，第一反射镜将光线反射至第二反射镜，第二反射镜将光线反射后从光投射孔射出；所述第一电机和第二电机均为伺服电机且均与控制单元电连接。
进一步，所述光角度调整装置还包括辅助固定座，辅助固定座由左侧板、右侧板和后侧板组成，第一电机位于后侧板与箱体后面之间，第二电机位于右侧板与箱体左面之间，右侧板与后侧板开设轴孔，第一电机的转轴穿过后侧板的轴孔，第一反射镜安装在第一电机转轴穿过轴孔的一端，第二电机的转轴穿过右侧板的轴孔，第二反射镜安装在第二电机转轴穿过轴孔的一端；所述左侧板开设光源安装孔，光源固定在光源安装孔上且光源与第一反射镜相互垂直；所述箱体的前面还固定一摄像头，摄像头与控制单元电连接。
所述光角度调整装置包括第一电机、第二电机、第一反射镜、第二反射镜和电机驱动器，第一反射镜和第二反射镜分别安装在第一电机和第二电机的转轴上，第二电机与第一电机相互垂直，第一反射镜与第二反射镜相互垂直，第二反射镜设置在光投射孔的正后方，第一反射镜设置在第二反射镜的正下方，第一反射镜的侧方设置一光源固定座，光源安装在光源固定座顶部，光源固定座内设有第四反射镜，第四反射镜将光源光线反射至第一反射镜，第一反射镜将光线反射至第二反射镜，第二反射镜将光线反射后从光投射孔射出；所述第一电机和第二电机均为伺服电机且均与电机驱动器电连接，电机驱动器与控制单元电连接。
进一步，所述光角度调整装置还包括辅助固定座，辅助固定座由左侧板、右侧板和后侧板组成，第一电机位于后侧板与箱体后面之间，第二电机位于右侧板与箱体左面之间，右侧板与后侧板开设轴孔，第一电机的转轴穿过后侧板的轴孔，第一反射镜安装在第一电机转轴穿过轴孔的一端，第二电机的转轴穿过右侧板的轴孔，第二反射镜安装在第二电机转轴穿过轴孔的一端；所述左侧板开设光源射入孔，光源固定座与射入孔相对，第四反射镜将光源光线通过射入孔反射至第一反射镜；所述箱体的前面还固定一摄像头，摄像头与控制单元电连接。
进一步，所述箱体内还安装一激光测距传感器，激光测距传感器与控制单元电连接。
所述光角度调整装置包括第三电机、电机支撑架、第四电机、旋转架、光源安装架和旋转扫描传感器，第三电机通过电机支撑架倒挂于箱体顶面，旋转扫描传感器固定在电机支撑架上；旋转架包括连接板、第四电机安装板和配重板，连接板固定在第三电机的转轴上，第四电机安装板和配重板分别固定在连接板的两端，第四电机安装板开设轴孔，第四电机安装在第四电机安装板上且第四电机的转轴穿过第四电机的轴孔，光源安装架固定在第四电机转轴穿过轴孔的一端；所述光源安装在光源安装架上，光源与第四电机转轴相互垂直，第三电机和第四电机均为伺服电机且均与控制单元电连接，旋转扫描传感器也与控制单元电连接。
进一步，所述光源安装架开设供与光源安装的安装孔，安装孔边沿还安装一激光测距传感器，激光测距传感器与控制单元电连接。
所述光投射头还包括一与控制单元电连接的箱体角度调整装置，箱体角度调整装置固定在车体上，箱体顶部与箱体角度调整装置的底部连接，使箱体以可旋转的方式固定在箱体角度调整装置上。
进一步，所述箱体角度调整装置包括第五电机和电机固定架，第五电机与控制单元电连接，第五电机固定架固定在车体，第五电机安装在电机固定架中，第五电机的转轴与地面垂直，所述箱体的顶部固定在第五电机的转轴上。
所述系统还包括与控制单元电连接的车辆转向系统。
所述系统还包括与控制单元电连接的车体高度检测模块。
进一步，所述车体高度检测模块为一测距传感器，测距传感器安装在车底。
采用上述方案后，本发明工可以有下几种工作模式：
一、普通模式：速度感应模块将汽车速度信号发送至控制单元，角度感应模块将汽车转向信号发送至控制单元，同时导航模块将汽车位置信号发送至控制单元，控制单元综合车辆速度、角度及位置信息，控制光投射头在车辆前方投射出符合当前行车路线的指定角度和位置的光线，此光线为车辆指示出安全的行车距离、车辆行车路径和车速，如当光线投射到前方车辆尾部时，则车距在目前车速下过小；
二、预警模式：由速度感应模块将汽车速度信号发送至控制单元，角度感应模块将汽车转向信号发送至控制单元，而导航模块将导航路线的信息发送至控制单元，控制单元根据当前车速以及导航路线分析出在导航路线上需要的转向位置、到达转向点的时间，然后控制光投射模块在车辆将要到达转向点的时候提前投射出相应的转向光线，光线不仅为车辆指示出安全的行车距离，还能够指示出车辆的转向位置及角度，驾驶者根据此预警的转向光线作出提前应对，如减速、避让等；
三、反馈模式：在普通模式的基础上，导航模块根据导航系统将当前路段的安全车速信号发送至控制单元，控制单元根据当前的车速信号和角度信号与安全车速对比分析，在超速行驶时控制单元控制光投射头投射出报警光线，此光线可以是明暗变化或闪烁的形式，驾驶者接收到反馈的报警关系信息减速行驶。
本发明不限于上述几种工作模式，本发明由控制单元控制光投射头向地面投射出不同形状、频率、亮度、角度的光线，该光线能够为驾驶者指示出当前或之后各种路况下的安全车距、车速、转向角度等信息，本发明若干个光投射头在车辆上的数量及安装位置也可以根据不同车辆、不同需要进行选择。
本发明的有益效果为：本发明充分利用车辆原有结构，由控制单元接收导航模块、速度感应模块和角度感应模块的信号，根据这些模块提供的车辆状态信息，控制单元向若干个光投射头发送控制信号，光投射头依据控制信号将光线投射至路面，通过此光线为车辆提供最佳行车路径、车距和方向等，保障行车安全，减少驾驶者的操作失误和紧张感，避免车祸。
附图说明
图1是本发明实施例一的结构示意图；
图2是本发明实施例一的结构示意图；
图3是本发明实施例一光投射头的结构示意图；
图4是本发明实施例一的俯视图；
图5是本发明实施例一结构示意图；
图6是本发明实施例二的结构示意图；
图7-8是本发明实施例二的光投射头结构示意图；
图9-11和本发明实施例三的光投射头结构示意图。
标号说明
控制单元1，触摸显示屏11，导航模块2，速度感应模块3，速度感应块31，速度传感器32，角度感应模块4，角度感应块41，角度传感器42，光投射头5，箱体51，光投射孔511，防护透镜512，光角度调整装置52，第一电机521，第二电机522，第一反射镜523，第二反射镜524，第三电机525，电机支撑架526，第四电机527，旋转架528，连接板5281，第四电机安装板5282，配重板5283，光源安装架529，安装孔5921，旋转扫描传感器530，激光测距传感器531，光源53，辅助固定座54，左侧板541，右侧板542，后侧板543，光源安装孔544，摄像头55，光源固定座56，第四反射镜57，电机驱动器58，箱体角度调整装置59，电机固定座591，第五电机592，车辆转向系统6，车体高度检测模块7。
具体实施方式
实施例一：
如图1至5所示为本发明的实施一，其揭示的行车安全指示系统，包括：
控制单元1，分别接收导航模块2、速度感应模块3和角度感应模块4的信号，控制光投射头5的光线投射方向和形式；控制单元1为带有触摸显示屏11的控制器，可将控制器安装于车内，方便驾驶者对其控制；
导航模块2，与控制单元1电连接，用于向控制单元1发送汽车位置信号，本实施例中导航模块2为导航仪，导航仪可以为控制器提供导航路线、车辆位置、路况等信息；
速度感应模块3，与控制单元1电连接，用于向控制单元1发送汽车速度信号，本实施例的速度感应模块3包括速度感应块31和速度传感器32，速度感应块31安装在汽车传动轴上，速度感应块31、速度传感器32与控制单元1依次电连接，由速度感应块31获取车速信息，速度传感器32将车速信号发送至控制单元1；
角度感应模块4，与控制单元1电连接，用于向控制单元1发送汽车转向信号，本实施例的角度感应模块4包括角度感应块41和角度传感器42，角度感应块41安装在汽车转向轴上，角度感应块41、角度传感器42与控制单元1依次电连接，由角度感应块41获取汽车转向角度信息，角度传感器42将转向信号发送至控制单元1；
及至少两个光投射头5，本实施例光投射头数量为四个，光投射头5的数量及安装位置可以根据需要进行选择；本实施例的光投射头5包括箱体51、光源53和光角度调整装置52，光源53和光角度调整装置52均安装在箱体中，光角度调整装置52与控制单元1电连接，控制单元1向光角度调整装置52发送控制信号。
箱体51的前面开设光投射孔511，光投射孔511上安装防护透镜512，防护透镜512采用变焦曲面防护透镜，变焦曲面防护透镜具有光线聚焦的功能，能够增强光线强度；如图2-4所示，本实施例中，光角度调整装置52包括第一电机521、第二电机522、第一反射镜523和第二反射镜524，第一反射镜523和第二反射镜524分别安装在第一电机521和第二电机522的转轴上，第二电机522与第一电机521相互垂直而第一反射镜523与第二反射镜524相互垂直，第二反射镜524设置在光投射孔511的正后方，第一反射镜523设置在第二反射镜524的正下方，光源53设置在第一反射镜523的侧方且光源与第一反射镜523垂直，光源53将光线发射至第一反射镜523，第一反射镜523将光线反射至第二反射镜524，第二反射镜524将光线反射后从光投射孔511射出；所述第一电机521和第二电机522均为伺服电机且均与控制单元1电连接。
在本实施例的光投射头5中，第一电机521和第二电机522受到控制单元1的控制，第一电机521转轴和第二电机522转轴的转动分别带动第一反射镜523和第二反射镜524的转动，光源53从第一反射镜523侧面射出垂直光束，经第一反射镜523反射后射向第二反射镜524，被第二反射镜524反射后从其正前方的光投射孔511射出，并最终投射到路面上，从而控制单元1通过控制第一电机521和第二电机522的转动，进而控制第一反射镜523和第二反射镜524的转动位置，最终实现投射至路面的光线的控制，控制第一电机521和第二电机522电机来回转动，其转动频率足够快就可以使光线在路面投射出一段指示路线，该指示路线与车辆行走方向一致时，就指示出了车辆的行车路线，该指示路线同样能够指示出车辆与前方物体的距离，从而为驾驶者提供安全行车的参考和指示。
控制单元1对投射头5中各电机转速控制是以导航模块2、速度感应模块3和角度感应模块4所检测到的车辆行驶路段信息、车速信息及行驶路径信息为依据。
为了便于光角度灵活的调节，所述光角度调整装置52还包括辅助固定座54，辅助固定座54由左侧板541、右侧板542和后侧板543组成，第一电机521位于后侧板543与箱体51后面之间，第二电机522位于右侧板542与箱体51左面之间，右侧板542与后侧板543开设轴孔（图中未示出），第一电机521的转轴穿过后侧板543的轴孔，第一反射镜523安装在第一电机521转轴穿过轴孔的一端，第二电机522的转轴穿过右侧板542的轴孔，第二反射镜524安装在第二电机522转轴穿过轴孔的一端；所述左侧板541开设光源安装孔544，光源53固定在光源安装孔544上且光源53与第一反射镜523相互垂直。
箱体51的前面还固定一摄像头55，摄像头55与控制单元1电连接，摄像头55拍摄车前方路况的照片发送至控制单元，控制单元1结合照片信息、当前车速角度信息及在先设定的理想路况信息，分析得出前方路况行车是否安全，非安全时，控制光投射头5投射出指定的光线提醒驾驶者作出提前应对，突发情况导致的事故发生。
如图5所示，系统还包括与控制单元1电连接的车辆转向系统6，可通过控制单元1向车辆转向系统6发送控制信号，使车辆转向系统6与投射头5配合，如前方路段需要转弯时，控制单元1控制投射头5提前投射出指示前方转向方向的光线，而车辆转向系统6相应方向的转向灯自动亮起，这种设置可以驾驶者保持良好的驾驶习惯，弯道是交通事故的高发路段，在进入弯道之前本系统给驾驶者的提醒和指示最大限度的帮助驾驶员保持正确操作，保障行车安全。
实施例二：
图6-8所示为本发明的实施例二，本实施例与实施例一大致相同，不同之处在于：
本实施例的光投射头5中，光角度调整装置52包括第一电机521、第二电机522、第一反射镜523、第二反射镜524和电机驱动器58，第一反射镜523和第二反射镜524分别安装在第一电机521和第二电机522的转轴上，第二电机522与第一电机521相互垂直而第一反射镜523与第二反射镜524相互垂直，第二反射镜524设置在光投射孔511的正后方，第一反射镜523设置在第二反射镜524的正下方，第一反射镜523的侧方设置一光源固定座56，光源53安装在光源固定座56顶部，光源固定座56内设有第四反射镜57，第四反射镜57将光源53的光线反射至第一反射镜523，第一反射镜523将光线反射至第二反射镜524，第二反射镜524将光线反射后从光投射孔511射出；所述第一电机521和第二电机522均为伺服电机且均与电机驱动器58电连接，电机驱动器58与控制单元1电连接。
为了便于光角度灵活的调节，本实施例的光角度调整装置52还包括辅助固定座54，辅助固定座54由左侧板541、右侧板542和后侧板543组成，第一电机521位于后侧板543与箱体51后面之间，第二电机522位于右侧板542与箱体51左面之间，右侧板542与后侧板543开设轴孔（图中未示出），第一电机521的转轴穿过后侧板543的轴孔，第一反射镜523安装在第一电机521转轴穿过轴孔的一端，第二电机522的转轴穿过右侧板542的轴孔，第二反射镜524安装在第二电机522转轴穿过轴孔的一端；所述左侧板541开设光源射入孔（图中未示出），光源固定座56与光源射入孔相对，第四反射镜57将光源光线通过光源射入孔反射至第一反射镜523。
本实施例的箱体51内还安装一激光测距传感器531，激光测距传感器531与控制单元1电连接。如图6所述本实施例中系统还包括与控制单元1电连接的车体高度检测模块7，车体高度检测模块7采用测距传感器，测距传感器安装在车底，且与投射头5高度相同的位置，车体高度检测模块7将高度信号发送至控制单元1，控制单元1根据实际高度来调整光投射头5的投射角度。
光投射头5还包括一与控制单元1电连接的箱体角度调整装置59，箱体角度调整装置59固定在车体上，箱体51顶部与箱体角度调整装置59的底部连接，使箱体51以可旋转的方式固定在箱体角度调整装置上，具体的，所述箱体角度调整装置59包括第五电机592和电机固定架591，电机固定架591固定在车体上，第五电机592安装在电机固定架591中，第五电机592与控制单元1电连接，第五电机592的转轴与地面垂直，所述箱体51的顶部固定在第五电机592的转轴上，控制单元1控制第五电机592的转动以带动箱体51转动，从而控制箱体51投射的方向，实现光线从车体的任意角度投射出去，扩大指示光线的范围。
本实施例控制单元1对光投射头5中光线角度的调节和控制与实施例一相同，不同之处在于本实施例光源53的光线经过第四反射镜57反射至第一反射镜523，本实施例还通过激光测距传感器531来测量光投射头5与地面的距离，从而得到车辆与光线投射点的距离，其与安全距离进行对比可判断行车距离的安全性。
实施例三：
如图9-11所示，实施例三揭示的行车安全指示系统与实施例二大致相同，不同之处在于：
本实施例的光投射头5中，箱体51的前面开设光投射孔511，光投射孔511上安装防护透镜512；所述光角度调整装置52包括第三电机525、电机支撑架526、第四电机527、旋转架528、光源安装架529和旋转扫描传感器530，第三电机525通过电机支撑架倒挂于箱体51顶面，旋转扫描传感器530固定在电机支撑架526上；旋转架528包括连接板5281、第四电机安装板5282和配重板5283，连接板5281固定在第三电机525的转轴上，第四电机安装板5282和配重板5283分别固定在连接板5281的两端，第四电机安装板5282开设轴孔（图中未示出），第四电机527安装在第四电机安装板5282上且第四电机527的转轴穿过第四电机527的轴孔，光源安装架529固定在第四电机527转轴穿过轴孔的一端；所述光源53安装在光源安装架529上，光源53与第四电机527的转轴相互垂直，第三电机525和第四电机527均为伺服电机且均与控制单元1电连接，旋转扫描传感器530也与控制单元1电连接。
光源53为激光发射器，光源安装架529开设供与光源53安装的安装孔5291，安装孔5291边沿还安装一激光测距传感器531，激光测距传感器531与控制单元1电连接。
在本实施例的光投射头5中，光线投射和角度调整与实施例一和二都不同，其过程如下：由控制单元1控制第三电机525转轴和第四电机527转轴的转动，第三电机525倒挂于箱体51顶面，第三电机525运行时，电机支撑架526与第四电机527随着第三电机525的转轴转动，而第四电机527的转轴同时转动，带动光源53和激光测距传感器531转动，光源53将光束直接从光投射孔射出，本实施例的光线不再需要反射，而是通过直接调整（转动）光源53的位置实现光线出射角度的变化，本实施例中还通过激光测距传感器531获取指示光线投射点与车辆的距离信息，通过旋转扫描传感器530获取光源转动后的位置信息，这些信息返回至控制单元1，控制单元1便能判断出挡圈光线是否为指定位置、形状、角度的光线。
本实施例的光投射头5还包括一与控制单元1电连接的箱体角度调整装置59，箱体角度调整装置59固定在车体上，箱体51顶部与箱体角度调整装置59的底部连接，使箱体51以可旋转的方式固定在箱体角度调整装置上，具体的，所述箱体角度调整装置59包括第五电机592和电机固定架591，电机固定架591固定在车体上，第五电机592安装在电机固定架591中，第五电机592与控制单元1电连接，第五电机592的转轴与地面垂直，所述箱体51的顶部固定在第五电机592的转轴上，控制单元1控制第五电机592的转动以带动箱体51转动，从而控制箱体51投射的方向，实现光线从车体的任意角度投射出去，扩大指示光线的投射范围。
本发明采用的光投射头5并不仅限于实施例一至三所描述的，其还可以是采用投影原理的激光投射器或单线运动激光轮廓扫描激光投射器或双轴扫描运动叠加激光投射器。
本发明可以具有以下几种工作模式：
一、普通模式：速度感应模块3将汽车速度信号发送至控制单元1，角度感应模块4将汽车转向信号发送至控制单元1，同时导航模块2将汽车位置信号发送至控制单元1，控制单元1综合车辆速度，角度及位置信息，控制光投射头5在车辆前方投射出符合当前行车路线的指定角度和位置的光线，此光线为车辆指示出安全的行车距离、车辆行车路径和车速，如当光线投射到前方车辆尾部时，则车距在目前车速下过小；
二、预警模式：由速度感应模块3将汽车速度信号发送至控制单元1，角度感应模块4将汽车转向信号发送至控制单元1，而导航模块2将导航路线的信息发送至控制单元1，控制单元1根据当前车速以及导航路线分析出在导航路线上需要的转向位置、到达转向点的时间，然后控制光投射模块在车辆将要到达转向点的时候提前投射出相应的转向光线，此光线不仅为车辆指示出安全的行车距离，还能够指示出车辆的转向位置及角度，驾驶者根据此预警的转向光线作出提前应对，如减速、避让等；
三、反馈模式，在普通模式的基础上，导航模块2根据导航系统将当前路段的安全车速信号发送至控制单元1，控制单元根据当前的车速信号和角度信号与安全车速对比分析，在超速行驶时控制单元1控制光投射头投射出报警光线，此光线可以是明暗变化或闪烁的形式，驾驶者接收到反馈的报警关系信息减速行驶。另外在装有激光测距传感器和摄像头的投射头中，激光测距传感器和摄像头分别将采集到的车距和路况信息反馈至控制单元1，控制单元1将实际车距和安全车距对比，处于危险车距范围内时，控制投射头5发出相应的指示光线，控制单元1还将摄像头采集的路况信息与导航模块提供的理想路况信息对比，路况发生变化时，控制投射头5发出相应的指示光线。
以上仅为本发明的具体实施例，并非对本发明的保护范围的限定。凡依本案的设计思路所做的等同变化，均落入本案的保护范围。

Claims (17)

1、行车安全指示系统，其特征在于，包括：
控制单元，分别接收导航模块、速度感应模块和角度感应模块的信号，控制光投射头的光线投射方向和形式；
导航模块，与控制单元电连接，用于向控制单元发送汽车位置信号；
速度感应模块，与控制单元电连接，用于向控制单元发送汽车速度信号；
角度感应模块，与控制单元电连接，用于向控制单元发送汽车转向信号；
及至少两个光投射头，均与控制单元电连接，用于接收控制单元的控制信号并将光线投射至路面。
2、如权利要求1所述的行车安全指示系统，其特征在于：所述导航模块为导航仪，控制单元为带有触摸显示屏的控制器。
3、如权利要求1所述的行车安全指示系统，其特征在于：所述光投射头为采用投影原理的激光投射器或单线运动激光轮廓扫描激光投射器或双轴扫描运动叠加激光投射器。
4、如权利要求1所述的行车安全指示系统，其特征在于：所述速度感应模块包括速度感应块和速度传感器，速度感应块安装在汽车传动轴上，速度感应块、速度传感器与控制单元依次电连接；角度感应模块包括角度感应块和角度传感器，角度感应块安装在汽车转向轴上，角度感应块、角度传感器与控制单元依次电连接。
5、如权利要求1所述的行车安全指示系统，其特征在于：所述光投射头包括箱体、光源和光角度调整装置，光源和光角度调整装置均安装在箱体中，光角度调整装置与控制单元电连接，所述箱体的前面开设光投射孔，光投射孔上安装防护透镜，该防护透镜采用变焦曲面防护透镜；所述光源为激光发射器。
6、如权利要求5所述的行车安全指示系统，其特征在于：所述光角度调整装置包括第一电机、第二电机、第一反射镜和第二反射镜，第一反射镜和第二反射镜分别安装在第一电机和第二电机的转轴上，第二电机与第一电机相互垂直，第一反射镜与第二反射镜相互垂直，第二反射镜设置在光投射孔的正后方，第一反射镜设置在第二反射镜的正下方，光源设置在第一反射镜的侧方且光源与第一反射镜垂直，光源将光线发射至第一反射镜，第一反射镜将光线反射至第二反射镜，第二反射镜将光线反射后从光投射孔射出；所述第一电机和第二电机均为伺服电机且均与控制单元电连接。
7、如权利要求6所述的行车安全指示系统，其特征在于：所述光角度调整装置还包括辅助固定座，辅助固定座由左侧板、右侧板和后侧板组成，第一电机位于后侧板与箱体后面之间，第二电机位于右侧板与箱体左面之间，右侧板与后侧板开设轴孔，第一电机的转轴穿过后侧板的轴孔，第一反射镜安装在第一电机转轴穿过轴孔的一端，第二电机的转轴穿过右侧板的轴孔，第二反射镜安装在第二电机转轴穿过轴孔的一端；所述左侧板开设光源安装孔，光源固定在光源安装孔上且光源与第一反射镜相互垂直；所述箱体的前面还固定一摄像头，摄像头与控制单元电连接。
8、如权利要求5所述的行车安全指示系统，其特征在于：所述光角度调整装置包括第一电机、第二电机、第一反射镜、第二反射镜和电机驱动器，第一反射镜和第二反射镜分别安装在第一电机和第二电机的转轴上，第二电机与第一电机相互垂直，第一反射镜与第二反射镜相互垂直，第二反射镜设置在光投射孔的正后方，第一反射镜设置在第二反射镜的正下方，第一反射镜的侧方设置一光源固定座，光源安装在光源固定座顶部，光源固定座内设有第四反射镜，第四反射镜将光源光线反射至第一反射镜，第一反射镜将光线反射至第二反射镜，第二反射镜将光线反射后从光投射孔射出；所述第一电机和第二电机均为伺服电机且均与电机驱动器电连接，电机驱动器与控制单元电连接。
9、如权利要求8所述的行车安全指示系统，其特征在于：所述光角度调整装置还包括辅助固定座，辅助固定座由左侧板、右侧板和后侧板组成，第一电机位于后侧板与箱体后面之间，第二电机位于右侧板与箱体左面之间，右侧板与后侧板开设轴孔，第一电机的转轴穿过后侧板的轴孔，第一反射镜安装在第一电机转轴穿过轴孔的一端，第二电机的转轴穿过右侧板的轴孔，第二反射镜安装在第二电机转轴穿过轴孔的一端；所述左侧板开设光源射入孔，光源固定座与射入孔相对，第四反射镜将光源光线通过射入孔反射至第一反射镜；所述箱体的前面还固定一摄像头，摄像头与控制单元电连接。
10、如权利要求8所述的行车安全指示系统，其特征在于：所述箱体内还安装一激光测距传感器，激光测距传感器与控制单元电连接。
11、如权利要求5所述的行车安全指示系统，其特征在于：所述光角度调整装置包括第三电机、电机支撑架、第四电机、旋转架、光源安装架和旋转扫描传感器，第三电机通过电机支撑架倒挂于箱体顶面，旋转扫描传感器固定在电机支撑架上；旋转架包括连接板、第四电机安装板和配重板，连接板固定在第三电机的转轴上，第四电机安装板和配重板分别固定在连接板的两端，第四电机安装板开设轴孔，第四电机安装在第四电机安装板上且第四电机的转轴穿过第四电机的轴孔，光源安装架固定在第四电机转轴穿过轴孔的一端；所述光源安装在光源安装架上，光源与第四电机转轴相互垂直，第三电机和第四电机均为伺服电机且均与控制单元电连接，旋转扫描传感器也与控制单元电连接。
12、如权利要求11所述的行车安全指示系统，其特征在于：所述光源安装架开设供与光源安装的安装孔，安装孔边沿还安装一激光测距传感器，激光测距传感器与控制单元电连接。
13、如权利要求5所述的行车安全指示系统，其特征在于：所述光投射头还包括一与控制单元电连接的箱体角度调整装置，箱体角度调整装置固定在车体上，箱体顶部与箱体角度调整装置的底部连接，使箱体以可旋转的方式固定在箱体角度调整装置上。
14、如权利要求13所述的行车安全指示系统，其特征在于：所述箱体角度调整装置包括第五电机和电机固定架，第五电机与控制单元电连接，第五电机固定架固定在车体，第五电机安装在电机固定架中，第五电机的转轴与地面垂直，所述箱体的顶部固定在第五电机的转轴上。
15、如权利要求1所述的行车安全指示系统，其特征在于：所述系统还包括与控制单元电连接的车辆转向系统。
16、如权利要求1所述的行车安全指示系统，其特征在于：所述系统还包括与控制单元电连接的车体高度检测模块。
17、如权利要求16所述的行车安全指示系统，其特征在于：所述车体高度检测模块为一测距传感器，测距传感器安装在车底。
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