CN116520339B - Laser ranging anti-collision protection device - Google Patents
Laser ranging anti-collision protection device Download PDFInfo
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- CN116520339B CN116520339B CN202310746100.8A CN202310746100A CN116520339B CN 116520339 B CN116520339 B CN 116520339B CN 202310746100 A CN202310746100 A CN 202310746100A CN 116520339 B CN116520339 B CN 116520339B
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- bottom cover
- vehicle door
- door
- laser
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 18
- 230000007306 turnover Effects 0.000 claims description 33
- 238000006073 displacement reaction Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
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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
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Human Computer Interaction (AREA)
- Mechanical Engineering (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention relates to the technical field of laser ranging equipment, in particular to a laser ranging anti-collision protection device, which comprises a laser ranging sensor arranged in a vehicle door, a lens strip and a rotating part, wherein the outer wall of the vehicle door is provided with a penetrating opening distributed along the length direction of the vehicle door in a penetrating way, and the lens strip is fixedly embedded in the penetrating opening; the length direction of the rotating part is consistent with the length direction of the lens strip, the two ends of the rotating part are respectively connected with the front side and the rear side of the inside of the vehicle door in a rotating way, the position height of the rotating part is equivalent to the height of the lens strip, and the laser ranging sensor is fixedly arranged on the rotating part. According to the invention, the laser ranging sensor is arranged on the inner side of the vehicle door, and when an object on the outer side of the vehicle door is very close to the vehicle door, the alarm can automatically give an alarm, so that passengers are reminded to open the door carefully, and the probability of collision between the vehicle door and an external object is reduced.
Description
Technical Field
The invention relates to the technical field of laser ranging equipment, in particular to a laser ranging anti-collision protection device.
Background
With the continuous development of the economic level in China, the life quality of residents is gradually improved, and now, cars walk into thousands of families, so that people are concerned about the use and safety problems of the cars, and particularly the scratch and collision problems of the cars are common in the daily use process.
At present, many intelligent automobiles are provided with laser ranging anti-collision devices, namely, laser ranging sensors are installed on the front side or the rear side of the automobile, and an alarm is installed in the automobile body, so that when a front side bumper of the automobile or the tail of the automobile is about to collide with an external object, the alarm can automatically give an alarm, thereby reminding a driver of paying attention to safety, and therefore, a plurality of unnecessary safety accidents can be avoided. However, in the daily use of a car, there is often a problem in that when a driver and passengers in the car get off the car after the car is parked, the car door needs to be opened outwards, and when the car door is opened, if an obstacle exists on the outer side of the car door, the car door is easy to collide with the obstacle, so that the car door is damaged.
Common road barriers include curbs, road blocking piers and the like, when a vehicle is parked on a roadside, the vehicle is very close to the curbs at the edge of the road, and the height of the curbs is usually about twenty centimeters, which is equivalent to the height of the bottom side of a door and the ground of a general small car, and when a passenger suddenly opens the door, the bottom side of the door is often caused to collide with the curbs or scratch. Therefore, we propose a laser ranging anti-collision protection device to solve the above drawbacks well.
Disclosure of Invention
The invention aims to provide a laser ranging anti-collision protection device which is used for solving the problems in the background technology.
The invention is realized by the following technical scheme:
the utility model provides a laser rangefinder anticollision protection device, is including setting up in the inside laser rangefinder sensor of door, still includes: the outer wall of the vehicle door is provided with a penetrating opening in a penetrating way along the length direction of the vehicle door in a penetrating way, and the lens bar is fixedly embedded in the penetrating opening;
the length direction of the rotating part is consistent with the length direction of the lens strip, two ends of the rotating part are respectively connected with the front side and the rear side of the inside of the vehicle door in a rotating way, the position height of the rotating part is equivalent to the height of the lens strip, and the laser ranging sensor is fixedly arranged on the rotating part;
the bottom cover is penetrated and provided with mounting notches distributed along the length direction of the bottom cover, the bottom cover is arranged in the mounting notches, one end of the bottom cover is rotationally connected in the mounting notches, the upper surface of the bottom cover is fixedly embedded with a reflective mirror, when the door is closed, the bottom cover is in a horizontal state, and when the door is opened, the bottom cover is unfolded to form an included angle of 45 degrees with the horizontal plane;
the driving mechanism is used for driving the rotating part to rotate, when the vehicle door is closed, the laser beam emitted by the laser ranging sensor is in a horizontal state and passes through the lens strip, and when the vehicle door is opened, the laser beam emitted by the laser ranging sensor vertically faces downwards and horizontally faces outwards after being reflected by the reflector; and
the laser ranging system comprises a controller and an alarm, wherein the signal output end of the laser ranging sensor is connected with the signal input end of the controller, and the signal output end of the controller is connected with the alarm.
Optionally, the number of the laser ranging sensors is several, the rotating part includes several rotating frames which are arranged along a line and are in one-to-one correspondence with the laser ranging sensors, and the laser ranging sensors are fixedly arranged in the corresponding rotating frames; and connecting lugs are fixedly arranged between every two adjacent rotating frames, rotating shafts are arranged on opposite surfaces of the two rotating frames at the outermost ends, and the two rotating shafts are respectively and rotatably connected with front and rear side walls of the inside of the vehicle door.
Optionally, the actuating mechanism includes mount pad, servo motor, driving gear and driven gear, mount pad fixed mounting is in on the inner wall of door, servo motor fixed mounting in on the mount pad, driving gear with servo motor's output shaft coaxial coupling, driven gear fixed suit in the pivot is outside, just driven gear with driving gear meshing.
Optionally, the inside of door just is located the one end of keeping away from articulated portion and runs through and be equipped with the light trap, the light trap is embedded admittedly and is had the light-transmitting mirror, the inside of door still is provided with laser range finder, laser emission end and the laser receiving end of laser range finder all aim at the light-transmitting mirror, laser range finder's signal output part with the controller is connected, the signal output part of controller with servo motor connects.
Optionally, a tension spring is arranged on the upper surface of the bottom cover, and one end of the tension spring, which is far away from the bottom cover, is hung on the inner wall of the vehicle door; when the bottom cover is in a horizontal state, the tension spring is in a stretching state.
Optionally, the inside one side of installation notch just is located the outside of the rotatory end of bottom is fixed and is provided with spacing portion, the inside upper surface of spacing portion is the horizontality, the inside lower surface of spacing portion is the inclination and is 45 with the contained angle of horizontal plane.
Optionally, a power supply is further arranged in the vehicle door, and the laser ranging sensor is electrically connected with the power supply; the front side and the rear side of the inner surface of the limiting part are respectively provided with conductive sheets in a bonding way, the upper surface and the lower surface of the bottom cover are respectively provided with an upper conductive strip and a lower conductive strip in a bonding way, when the bottom cover is in a horizontal state, the upper conducting strip is abutted with the two conducting strips, when the bottom cover is unfolded to form an included angle of 45 degrees with the horizontal plane, the lower conducting strip is abutted with the two conducting strips, and the two conducting strips are respectively connected with the anode and the cathode of the power supply.
Optionally, the automobile door overturning device further comprises an overturning assembly, the overturning assembly comprises a positioning plate, an overturning plate and a traction rope, the positioning plate is fixedly arranged in the installation notch and is close to one side of the automobile door hinging part, an overturning opening is formed in the positioning plate in a penetrating mode, the overturning plate is movably arranged in the overturning opening, a displacement block is further arranged in the overturning opening, the displacement block and the overturning plate are hinged, a guide post is further arranged on one surface, opposite to the overturning plate, of the displacement block, the guide post movably penetrates through the positioning plate, a spring is sleeved outside the guide post, two ends of the spring are respectively abutted to the outer end of the guide post and the outer wall of the positioning plate, a threading hole is formed in the side wall of the automobile door in a penetrating mode, and one end of the traction rope is connected with the overturning plate and the other end of the traction rope penetrates through the threading hole and is fixedly connected with the automobile body; when the vehicle door is closed, the turnover plate is in a lateral lying state, and when the vehicle door is unfolded, the traction rope stretches outwards, and the turnover plate can push the bottom cover downwards to keep the bottom cover in an inclined state.
Optionally, the controller is disposed in the door, and the alarm adopts a buzzer and is disposed on an inner surface of the door.
Compared with the prior art, the invention provides a laser ranging anti-collision protection device, which has the following beneficial effects:
according to the invention, the laser ranging sensor is arranged on the inner side of the vehicle door, and when an object on the outer side of the vehicle door is very close to the vehicle door, the alarm can automatically give an alarm, so that passengers are reminded to open the door carefully, and the collision probability of the vehicle door and an external object is reduced;
according to the invention, the laser ranging sensor can be turned downwards at the moment of opening the vehicle door, so that the detected laser beam route is emitted outwards against the lower edge of the vehicle door, and therefore, the laser ranging sensor can detect obstacles with different heights, and the safety performance of the vehicle door is further improved;
the lens strips are fixedly embedded on the outer surface of the vehicle door, so that the laser beams can be smoothly emitted by the lens strips, and the decorative and attractive effects can be achieved;
the bottom cover can be unfolded at the moment of opening the vehicle door, so that the inside of the vehicle door is isolated from the outside in a conventional state, the outside foreign matters are prevented from entering the inside of the vehicle door, and the exposure of the laser ranging sensor is also prevented;
the laser ranging sensor can detect the obstacle in the external horizontal direction in the closing state of the vehicle door, so that the laser ranging sensor can play a role in assisting driving when the vehicle meets, parks and backs a car, and the driver is reminded of the obstacle on the outer side of the vehicle to pay attention.
Drawings
FIG. 1 is a schematic view of the outside of a vehicle door of the present invention;
FIG. 2 is a schematic view of the inside of the door of the present invention;
FIG. 3 is a sectional view showing a closed state of the door of the present invention;
FIG. 4 is a sectional view showing an opened state of the door of the present invention;
FIG. 5 is an enlarged corresponding view at A in FIG. 3;
FIG. 6 is a schematic view of the bottom wall structure of the vehicle door of the present invention;
FIG. 7 is an enlarged view of the portion B of FIG. 6 in accordance with the present invention;
FIG. 8 is a schematic view of the bottom cover and the limiting part of the present invention;
FIG. 9 is a cross-sectional view of the flip plate structure of the present invention;
FIG. 10 is a cross-sectional view of another embodiment of the flip plate structure of the present invention;
FIG. 11 is a schematic view of a rotary part structure according to embodiment 1 of the present invention;
FIG. 12 is a schematic diagram of a circuit connection according to the present invention;
fig. 13 is a schematic view of the structure of a rotating part according to embodiment 2 of the present invention;
fig. 14 is a laser ranging sensor emission laser roadmap of embodiment 2 of the invention.
In the figure: 100. a vehicle door; 101. a penetration port; 102. a mounting notch; 103. a limit part; 104. a conductive sheet; 105. a threading hole; 106. a light hole; 107. a light-transmitting lens; 108. a laser range finder; 109. a power supply; 200. a laser ranging sensor; 300. a lens bar; 400. a rotating part; 401. a rotating frame; 402. a connecting lug; 403. a rotating shaft; 500. a bottom cover; 501. a reflective mirror; 502. a tension spring; 503. an upper conductive strip; 504. a lower conductive bar; 505. a positioning plate; 506. a turnover plate; 507. a traction rope; 508. a turnover port; 509. a displacement block; 510. a guide post; 511. a spring; 600. a driving mechanism; 601. a mounting base; 602. a servo motor; 603. a drive gear; 604. a driven gear; 700. a controller; 800. an alarm.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1, please refer to fig. 1-12, a laser ranging anti-collision protection device, which comprises a laser ranging sensor 200 (LDM 301 is a model of the laser ranging sensor 200) disposed inside a vehicle door 100, and further comprises a lens strip 300 and a rotating portion 400, wherein a number of the laser ranging sensors 200 are provided, a penetrating opening 101 distributed along a length direction of the vehicle door 100 is provided through an outer wall of the vehicle door 100, the lens strip 300 is fixedly embedded in the penetrating opening 101, the lens strip 300 is made of transparent material, such as glass, and the lens strip 300 is flush with an outer surface of the vehicle door 100; the length direction of the rotating part 400 is consistent with the length direction of the lens strip 300, two ends of the rotating part 400 are respectively connected with the front side and the rear side of the inside of the vehicle door 100 in a rotating way, the position height of the rotating part 400 is equivalent to the height of the lens strip 300, and the laser ranging sensor 200 is fixedly arranged on the rotating part 400; specifically, the rotating part 400 includes a plurality of rotating frames 401 arranged along a line and corresponding to the laser ranging sensors 200 one by one, and the laser ranging sensors 200 are fixedly disposed in the corresponding rotating frames 401; the connecting lugs 402 are fixedly arranged between the two adjacent rotating frames 401, the rotating shafts 403 are arranged on the opposite sides of the two rotating frames 401 at the outermost ends, the two rotating shafts 403 are arranged on the same central shaft, and the two rotating shafts 403 are respectively connected with the front side wall and the rear side wall of the inside of the vehicle door 100 in a rotating mode, so that the rotating part 400 can rotate by taking the rotating shafts 403 as shafts, and the direction of the transmitting end of the laser ranging sensor 200 is adjusted.
Further, the embodiment further includes a bottom cover 500, the bottom wall of the vehicle door 100 is provided with mounting slots 102 distributed along the length direction thereof in a penetrating manner, the bottom cover 500 is arranged in the mounting slots 102, one end of the bottom cover 500 is rotatably connected in the mounting slots 102, a reflector 501 is fixedly embedded on the upper surface of the bottom cover 500, when the vehicle door 100 is closed, the bottom cover 500 is in a horizontal state, and when the vehicle door 100 is opened, the bottom cover 500 is unfolded to an included angle of 45 degrees with the horizontal plane; specifically, a limiting portion 103 is fixedly disposed on one side of the inside of the mounting slot 102 and located at the outer side of the rotating end of the bottom cover 500, as shown in fig. 5, the inner upper surface of the limiting portion 103 is in a horizontal state, the inner lower surface of the limiting portion 103 is in an inclined state and forms an angle of 45 ° with the horizontal plane, when the door 100 is closed, the bottom cover 500 is attached to the inner upper surface of the limiting portion 103, and when the door is unfolded, the bottom cover 500 is attached to the inner lower surface of the limiting portion 103, i.e., the angle of 45 ° between the bottom cover 500 and the horizontal plane.
In addition, the upper surface of the bottom cover 500 is provided with a tension spring 502, and one end of the tension spring 502, which is far away from the bottom cover 500, is hung on the inner wall of the vehicle door 100; when the bottom cover 500 is in a horizontal state, the tension spring 502 is in a stretched state, that is, the tension spring 502 always has upward tension on the bottom cover 500, so that the bottom cover 500 can always keep horizontal without the action of external force of a system; the embodiment further comprises a turnover assembly, the turnover assembly comprises a positioning plate 505, a turnover plate 506 and a traction rope 507, as shown in fig. 6, the positioning plate 505 is fixedly arranged in the mounting notch 102 and is close to one side of the hinge part of the vehicle door 100, a turnover opening 508 is formed in the positioning plate 505 in a penetrating manner, the turnover plate 506 is movably arranged in the turnover opening 508, a displacement block 509 is further arranged in the turnover opening 508, as shown in fig. 9, the displacement block 509 is hinged with the turnover plate 506, one surface of the displacement block 509, which is opposite to the turnover plate 506, is further provided with a guide post 510, the guide post 510 movably penetrates through the positioning plate 505, a spring 511 is sleeved outside the guide post 510, and two ends of the spring 511 are respectively abutted against the outer end of the guide post 510 and the outer wall of the positioning plate 505; the hinge point of the overturning plate 506 and the displacement block 509 is located at the middle position of the overturning plate 506, the bottom end of the overturning plate 506 is bent to be in an arc shape, in a natural state, the spring 511 is in a compressed state, that is, the spring 511 has a rightward pulling force on the displacement block 509, when the bottom cover 500 is kept in a horizontal state, the upper surface of the bottom cover 500 is abutted against the lower surface of the overturning plate 506, and at this time, the state of the overturning plate 506 is as shown in fig. 9.
In addition, a threading hole 105 is formed in the side wall of the vehicle door 100 in a penetrating manner, one end of a traction rope 507 is connected with a turnover plate 506, and the other end of the traction rope 507 penetrates through the threading hole 105 and is fixedly connected with the vehicle body; when the door 100 is closed, the turnover plate 506 is in a side lying state, and when the door 100 is unfolded, the traction rope 507 is stretched outwards, and the turnover plate 506 can push the bottom cover 500 downwards to keep an inclined state; specifically, the outer end of the haulage rope 507 may be connected to the door frame of the vehicle body, and when the vehicle door 100 is closed, the haulage rope 507 is in a loose state, and at this time, the bottom cover 500 is kept horizontal and the turnover plate 506 is kept in a side lying state under the left and right of the tension spring 502; when the door is opened outward, the traction rope 507 is tightened and stretched, and at this time, the turnover plate 506 can maintain a vertical state under the action of the traction rope 507, thereby pushing the bottom cover 500 downward, so that the bottom cover 500 maintains an angle of 45 ° with the horizontal plane. It should be noted that when the included angle between the door 100 and the vehicle body reaches 15 °, the bottom cover 500 may be attached to the inner lower surface of the limiting portion 103, and when the door is continuously opened, the traction rope 507 continues to stretch the turnover plate 506, at this time, the tilting angle of the turnover plate 506 is not changed due to the obstruction of the displacement block 509, so that the displacement block 509 may slide forward along the length direction of the guide post 510, that is, the bottom end of the turnover plate 506 abuts against the upper surface of the bottom cover 500 and may slide along the upper surface of the bottom cover 500. It should be noted that, the stiffness coefficient of the spring 511 is greater than that of the tension spring 502, and when the traction rope 507 is stretched outwards, the overturning plate 506 always overturns first and then slides, so that the bottom cover 500 is ensured to be opened at the first time.
The embodiment also comprises a controller 700 (model STM32F103VET 6) and an alarm 800, wherein the signal output ends of the plurality of laser ranging sensors 200 are connected with the signal input end of the controller 700, and the signal output end of the controller 700 is connected with the alarm 800; specifically, the controller 700 is disposed in the vehicle door 100, the alarm 800 is a buzzer and is disposed on the inner surface of the vehicle door 100, the detection signal of the laser ranging sensor 200 can be transmitted to the controller 700, the controller 700 presets an alarm distance, and when the detection result of any one of the laser ranging sensors 200 is smaller than the alarm distance, the controller 700 starts the alarm 800 to give an alarm, thereby reminding the passenger; when the detection results of the plurality of laser ranging sensors 200 are all greater than the alarm distance, the alarm 800 is not started, and the vehicle door 100 can be normally opened and closed.
In addition, the present embodiment further includes a driving mechanism 600 for driving the rotation part 400 to rotate, when the door 100 is closed, the laser beam emitted from the laser ranging sensor 200 is in a horizontal state and passes through the lens bar 300, and when the door 100 is opened, the laser beam emitted from the laser ranging sensor 200 is directed downward vertically and is reflected by the mirror 501 and then directed outward horizontally; specifically, the driving mechanism 600 includes a mounting seat 601, a servo motor 602, a driving gear 603 and a driven gear 604, wherein the mounting seat 601 is fixedly mounted on the inner wall of the vehicle door 100, the servo motor 602 is fixedly mounted on the mounting seat 601, the driving gear 603 is coaxially connected with an output shaft of the servo motor 602, the driven gear 604 is fixedly sleeved outside the rotating shaft 403, and the driven gear 604 is meshed with the driving gear 603; therefore, the rotation of the rotating part 400, that is, the laser beam emitted from the laser ranging sensor 200 is controlled to be in a horizontal state or a vertical state by the servo motor 602.
Inside and the one end that is located the articulated portion of keeping away from of door 100 run through and are equipped with light trap 106, and light trap 106 is embedded admittedly and is passed through light mirror 107, and light trap 107 is transparent glass material, and the inside of door 100 still is provided with laser range finder 108, and laser emission end and the laser receiving end of laser range finder 108 all aim at light trap 107, and the signal output part of laser range finder 108 is connected with controller 700, and the signal output part of controller 700 is connected with servo motor 602. It should be noted that, the laser beam emitted by the laser range finder 108 is not perpendicular to the light-transmitting mirror 107, but has an included angle of not less than 5 ° with the surface of the light-transmitting mirror 107, so as to avoid the influence of light reflection on the measurement accuracy; since the light hole 106 is located at the end of the door 100 away from the hinge, when the door 100 is closed, the light hole 106 is just covered by the door frame of the car body, and the distance detected by the laser rangefinder 108 is a fixed value, the controller 700 controls the laser rangefinder sensor 200 to align with the lens bar 300 by starting the servo motor 602; when the door is opened, the light hole 106 is exposed, the detection result of the laser range finder 108 is far greater than the fixed value of the closed state, and the controller 700 controls the rotation part 400 to rotate through the servo motor 602, so that the laser range sensor 200 is aligned to the bottom cover 500, and the obstacle with lower detection height is detected.
Further, a power supply 109 is further arranged in the vehicle door 100, and the plurality of laser ranging sensors 200 are electrically connected with the power supply 109; the front and rear sides of the inner surface of the limit part 103 are respectively provided with a conductive sheet 104 in a bonding manner, the upper surface and the lower surface of the bottom cover 500 are respectively provided with an upper conductive strip 503 and a lower conductive strip 504 in a bonding manner, when the bottom cover 500 is in a horizontal state, the upper conductive strip 503 is abutted against the two conductive sheets 104, when the bottom cover 500 is unfolded to an included angle of 45 degrees with the horizontal plane, the lower conductive strip 504 is abutted against the two conductive sheets 104, and the two conductive sheets 104 are respectively connected with the positive electrode and the negative electrode of the power supply 109, as shown in fig. 12; therefore, when the door 100 is closed, the bottom cover 500 is in a horizontal state, and the laser ranging sensor 200 is in an energized state; when the door 100 is opened to an angle exceeding 15 ° with the vehicle body, the bottom cover 500 is in an inclined state, the laser ranging sensor 200 is also in an energized working state, and in the rest state, the laser ranging sensor 200 is powered off and does not work; it should be noted that, when the door 100 is opened, the servo motor 602 drives the rotation part 400 to rotate, and the bottom cover 500 is also indirectly unfolded under the action of the traction rope 507, and before the bottom cover 500 is unfolded to have an angle of 45 ° with respect to the horizontal plane, the emitting end of the laser ranging sensor 200 is already vertically downward.
In summary, in the implementation process of the present embodiment, when the door 100 is closed, the internal state of the door 100 is shown in fig. 3, at this time, the bottom cover 500 is in a horizontal state, the laser beam emitted by the laser ranging sensor 200 is in a horizontal state and directed to the lens strip 300, and if there is an obstacle outside the door at this time, the controller 700 will activate the alarm 800, so as to remind the passenger to open the door carefully, and avoid collision between the door and external obstacle caused by blind door opening; if the alarm 800 is abnormal, the passenger can normally open the door, and when the door 100 is opened, the light hole 106 is exposed, and the detection signal of the laser range finder 108 is changed, the servo motor 602 can drive the rotating part 400 to rotate, so that the transmitting end of the laser range sensor 200 faces downwards; when the unfolding angle of the vehicle door 100 exceeds 15 degrees, under the action of the traction rope 507, the bottom cover 500 can be unfolded to form an included angle of 45 degrees with the horizontal plane, at the moment, the laser ranging sensor 200 is electrified again, and the laser beam is emitted from the lower side of the vehicle door 100 after being reflected by the reflector 501, so that obstacles with lower positions, such as a curb, are detected, and the safety of opening the vehicle door 100 is further ensured; when the passenger gets off the vehicle door 100 is closed, the rotating part 400 and the bottom cover 500 are restored to the original positions.
Embodiment 2, please refer to fig. 13 and 14, the difference between this embodiment and embodiment 1 is that: the direction of the rotating frame 401 in this embodiment is not perpendicular to the lens strip 300, and when the laser ranging sensor 200 is installed inside the rotating frame 401, the included angle between the laser beam emitted by the laser ranging sensor 200 and the surface of the lens strip 300 is not less than 5 °, which is used to avoid the influence of the reflected light of the laser beam on the measurement result, so that the laser ranging sensor 200 is not opposite to the lens strip 300, which is helpful for improving the measurement accuracy.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a laser rangefinder anticollision protection device which characterized in that, including setting up in inside laser rangefinder sensor (200) of door (100), still include:
the lens strip (300) is arranged on the outer wall of the vehicle door (100) in a penetrating way, the penetrating opening (101) is distributed along the length direction of the vehicle door, and the lens strip (300) is fixedly embedded in the penetrating opening (101);
a rotating part (400), wherein the length direction of the rotating part (400) is consistent with the length direction of the lens strip (300), two ends of the rotating part (400) are respectively connected with the front side and the rear side of the inside of the vehicle door (100) in a rotating way, the position height of the rotating part (400) is equivalent to the height of the lens strip (300), and the laser ranging sensor (200) is fixedly arranged on the rotating part (400);
the bottom cover (500), the diapire of door (100) runs through and has seted up installation notch (102) that distribute along self length direction, bottom cover (500) set up in installation notch (102), just the one end of bottom cover (500) rotates to be connected in installation notch (102), reflector (501) have been inlayed admittedly to the upper surface of bottom cover (500), when door (100) are closed, bottom cover (500) are the horizontality, when door (100) are opened, bottom cover (500) expand to be 45 with the contained angle of horizontal plane;
the driving mechanism (600) is used for driving the rotating part (400) to rotate, when the car door (100) is closed, the laser beam emitted by the laser ranging sensor (200) is in a horizontal state and passes through the lens strip (300), and when the car door (100) is opened, the laser beam emitted by the laser ranging sensor (200) is vertically downward and is horizontally emitted outwards after being reflected by the reflector (501); and
the laser ranging device comprises a controller (700) and an alarm (800), wherein the signal output end of the laser ranging sensor (200) is connected with the signal input end of the controller (700), and the signal output end of the controller (700) is connected with the alarm (800).
2. The laser ranging collision avoidance device of claim 1 wherein: the number of the laser ranging sensors (200) is several, the rotating part (400) comprises a plurality of rotating frames (401) which are arranged along a line and are in one-to-one correspondence with the laser ranging sensors (200), and the laser ranging sensors (200) are fixedly arranged in the corresponding rotating frames (401); connecting lugs (402) are fixedly arranged between two adjacent rotating frames (401), rotating shafts (403) are respectively arranged on opposite surfaces of the two rotating frames (401) at the outermost ends, and the two rotating shafts (403) are respectively connected with front and rear side walls of the vehicle door (100) in a rotating mode.
3. The laser ranging collision avoidance device of claim 2 wherein: the driving mechanism (600) comprises a mounting seat (601), a servo motor (602), a driving gear (603) and a driven gear (604), wherein the mounting seat (601) is fixedly arranged on the inner wall of the vehicle door (100), the servo motor (602) is fixedly arranged on the mounting seat (601), the driving gear (603) is coaxially connected with an output shaft of the servo motor (602), the driven gear (604) is fixedly sleeved outside the rotating shaft (403), and the driven gear (604) is meshed with the driving gear (603).
4. A laser ranging collision avoidance device according to claim 3, wherein: inside and the one end that is located the articulated portion of keeping away from of door (100) run through and are equipped with light trap (106), light trap (106) are embedded firmly in light trap (107), the inside of door (100) still is provided with laser range finder (108), laser emission end and the laser receiving end of laser range finder (108) all aim at light trap (107), the signal output part of laser range finder (108) with controller (700) are connected, the signal output part of controller (700) with servo motor (602) are connected.
5. The laser ranging collision avoidance device of claim 1 wherein: the upper surface of the bottom cover (500) is provided with a tension spring (502), and one end of the tension spring (502) far away from the bottom cover (500) is hung on the inner wall of the vehicle door (100); when the bottom cover (500) is in a horizontal state, the tension spring (502) is in a stretched state.
6. The laser ranging collision avoidance device of claim 5 wherein: the device is characterized in that a limiting part (103) is fixedly arranged on one side of the inside of the mounting notch (102) and positioned outside the rotating end of the bottom cover (500), the upper surface of the inside of the limiting part (103) is in a horizontal state, and the lower surface of the inside of the limiting part (103) is in an inclined state and forms an included angle of 45 degrees with the horizontal plane.
7. The laser ranging collision avoidance device of claim 6 wherein: a power supply (109) is further arranged in the vehicle door (100), and the laser ranging sensor (200) is electrically connected with the power supply (109); conducting strips (104) are respectively attached to the front side and the rear side of the inner surface of the limiting part (103), an upper conducting strip (503) and a lower conducting strip (504) are respectively attached to the upper surface and the lower surface of the bottom cover (500), when the bottom cover (500) is in a horizontal state, the upper conducting strip (503) and the two conducting strips (104) are abutted, when the bottom cover (500) is unfolded to form an included angle of 45 degrees with the horizontal plane, the lower conducting strip (504) is abutted to the two conducting strips (104), and the two conducting strips (104) are respectively connected with the positive electrode and the negative electrode of the power supply (109).
8. The laser ranging collision avoidance device of claim 7 wherein: the automobile body comprises an automobile body, and is characterized by further comprising a turnover assembly, wherein the turnover assembly comprises a positioning plate (505), a turnover plate (506) and a traction rope (507), the positioning plate (505) is fixedly arranged in the installation notch (102) and is close to one side of a hinge part of the automobile body (100), the positioning plate (505) is provided with a turnover opening (508) in a penetrating manner, the turnover plate (506) is movably arranged in the turnover opening (508), a displacement block (509) is further arranged in the turnover opening (508), the displacement block (509) and the turnover plate (506) are hinged, one surface of the displacement block (509) opposite to the turnover plate (506) is further provided with a guide post (510), the guide post (510) movably penetrates through the positioning plate (505), the outer part of the guide post (510) is sleeved with a spring (511), two ends of the spring (511) are respectively abutted to the outer end of the guide post (510) and the outer wall of the positioning plate (505), the side wall of the automobile body (100) is provided with a threading hole (507), and the traction rope (506) penetrates through the other end of the turnover plate (506) to be connected with the other end of the automobile body (105); when the vehicle door (100) is closed, the turnover plate (506) is in a lateral lying state, and when the vehicle door (100) is unfolded, the traction rope (507) is stretched outwards, and the turnover plate (506) can push the bottom cover (500) downwards to keep an inclined state.
9. The laser ranging collision avoidance device of claim 1 wherein: the controller (700) is arranged in the vehicle door (100), and the alarm (800) adopts a buzzer and is arranged on the inner side surface of the vehicle door (100).
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| CN202310746100.8A CN116520339B (en) | 2023-06-25 | 2023-06-25 | Laser ranging anti-collision protection device |
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| CN202310746100.8A CN116520339B (en) | 2023-06-25 | 2023-06-25 | Laser ranging anti-collision protection device |
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