Summary of the invention
The present invention mainly solves the angle of original automobile rearview mirror need pass through manual regulation, and different chaufeurs sit on to be needed in the operator's compartment to reset, and complete vehicle weight changes and needs and resets, and exists and regulates frequent, unhandy technical matters; A kind of automobile rearview mirror intelligence regulation and control system and control method thereof are provided, it can be according to the variation of driver's eyes locus, automatically the rearview mirror angular adjustment is arrived best angle, make chaufeur maintain the optimum drive visual field always, improve traveling comfort and the safety of driving.
The present invention solve simultaneously original automobile can't change according to motoring condition in the process of moving (as turn, reversing) angle of going to regulate rearview mirror is to obtain optimum field, rearview mirror exists blind area and dead angle, influences the technical matters of driving safety; A kind of automobile rearview mirror intelligence regulation and control system and control method thereof are provided, it can arrive best angle with the rearview mirror angular adjustment automatically according to the motoring condition variation, dead zone-eliminating and dead angle make chaufeur maintain the optimum drive visual field always, improve running safety.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: automobile rearview mirror intelligence regulation and control system of the present invention, comprise central processing unit and with car that central processing unit links to each other in camera and automobile LOAD CELLS and power subsystem unit that operating voltage is provided for the intelligent regulation and control system of whole automobile rearview mirror, it is indoor and be positioned at the place ahead of driver's seat or oblique the place ahead that camera is installed in vehicle drive in the car, and the control signal mouth of described central processing unit links to each other through the motor up and down of first driving circuit and automobile rearview mirror respectively, left and right sides motor through second driving circuit and automobile rearview mirror links to each other.Central processing unit can be the central processing unit of using separately, as CPU, MCU etc., also can with original automobile on ECU share.Chaufeur sits in the chaufeur, start automobile, camera takes the chaufeur photo and gives central processing unit in the car, central processing unit is through analysis, processing and the calculating of internal processes, obtain the locus of driver's eyes, calculate and best angle is looked in the automobile rear flank of this driver's eyes locus coupling, export control signal then and give first driving circuit and second driving circuit, drive motor and the rotation of left and right sides motor up and down, the control rearview mirror turns to best angle.The automobile LOAD CELLS is gathered vehicle complete vehicle weight and is given central processing unit, if vehicle complete vehicle weight changes in follow-up travelling, then camera is taken pictures to the chaufeur that is sitting on the chaufeur seat again in the central processing unit controls car, and automobile rear flank angle is readjusted.Therefore, no matter be that different chaufeurs sit on and cause pilot's line of vision and rearview mirror angle not to match in the operator's compartment, still the variation of automobile passenger or other reasons cause the complete vehicle weight variation and cause pilot's line of vision and rearview mirror angle not to match, automobile rearview mirror intelligence regulation and control system of the present invention can both in time be adjusted rearview mirror automatically, make chaufeur maintain the optimum drive visual field always, improve traveling comfort and the safety of driving.
As preferably, described central processing unit links to each other with the corner of vehicle steering wheel sensor.The corner of vehicle steering wheel sensor is gathered bearing circle institute's gyration value and is flowed to central processing unit, central processing unit by analysis and calculate, the output control signal is given second driving circuit, drives left and right sides motor rotation, and the control rearview mirror makes to horizontally rotate best angle.Automobile turns left, and then left side back mirror cw horizontally rotates, and bearing circle just returns, and then the left side back mirror is turned back to original position; Automobile is turned right, and then the right rear conter clockwise horizontally rotates, and bearing circle just returns, and then right rear is turned back to original position.The technical program can arrive best angle with the rearview mirror angular adjustment automatically according to the motoring condition variation, and dead zone-eliminating and dead angle make chaufeur maintain the optimum drive visual field always, improve running safety.
As preferably, described power subsystem unit adopts Vehicular accumulator cell, and Vehicular accumulator cell links to each other through automobile ignition switch, source switch and automobile rearview mirror intelligence regulation and control system.Start a car turns on the power switch, and automobile rearview mirror intelligence regulation and control system could obtain the electric energy that Vehicular accumulator cell provides.When not needing to regulate rearview mirror automatically, the PTO Power Take Off switch gets final product.Mode of operation can be selected, and uses flexibly.
As preferably, described central processing unit links to each other with the reversing automobile gear position sensor.The reversing automobile gear position sensor is gathered the reverse place value and is flowed to central processing unit, central processing unit by analysis and calculate, first driving circuit is given in output control, drive motor rotation up and down, general control rearview mirror is towards rotation 3~10 degree, make driver's seat be conducive to reversing, the reversing safety is improved at blind area and dead angle when eliminating reversing.
As preferably, described central processing unit links to each other with rotating speed of automobile engine sensor, vehicle-mounted display unit respectively.The rotating speed of automobile engine sensor is gathered engine speed and is flowed to central processing unit, and the various sensor parameters that central processing unit obtains and the rearview mirror angle value that calculates all can be presented on the vehicle-mounted display unit.When engine speed is too low, do not start the regulatory function of rearview mirror, have only when engine speed is higher than a setting value, just start the intelligent regulatory function of rearview mirror.Guarantee that automobile rearview mirror of the present invention intelligence regulation and control system just starts working behind automobile starting, avoid it to make invalid action.
Automobile rearview mirror of the present invention intelligence adjustment control method is, is set with reference position and the automobile rearview mirror standard angle corresponding with this reference position of driver's eyes in the described central processing unit, and described control method comprises the steps:
1. camera is taken the photograph that is sitting in the chaufeur on the chaufeur seat in the described car, and flow to described central processing unit, central processing unit identifies driver's eyes position in the photograph by picture recognition module, regulate parameter calculating module with the reference position comparison of the actual eye position of chaufeur and driver's eyes by rearview mirror then, and calculate the angle that the automobile rearview mirror should be in by light reflection principle, calculate the up and down motor corresponding with this angle and the corner of left and right sides motor again, send control signal respectively by central processing unit at last and give described first driving circuit and second driving circuit, the motor up and down of control automobile rearview mirror and the rotation of left and right sides motor turn to and the corresponding angle of driver's eyes place height the automobile rearview mirror;
2. described automobile LOAD CELLS is gathered vehicle complete vehicle weight, and weight data flowed to described central processing unit, central processing unit judges whether the vehicle complete vehicle weight data that receives changes, as change, then again the chaufeur that is sitting on the chaufeur seat is taken pictures by camera in the described car of central processing unit controls, get back to step 1..
Adopt the technical program, no matter be that different chaufeurs sit on and cause pilot's line of vision and rearview mirror angle not to match in the operator's compartment, still the variation of automobile passenger or other reasons cause the complete vehicle weight variation and cause pilot's line of vision and rearview mirror angle not to match, can both in time adjust automatically rearview mirror, make chaufeur maintain the optimum drive visual field always, improve traveling comfort and the safety of driving.
As preferably, described central processing unit links to each other with the corner of vehicle steering wheel sensor; Described control method comprises: be set with a corner of vehicle steering wheel limit in the described central processing unit, described corner of vehicle steering wheel sensor flows to central processing unit with the corner of vehicle steering wheel value that collects, regulating parameter calculating module by described rearview mirror compares corner of vehicle steering wheel value and limit, if corner of vehicle steering wheel value value of reaching the limit of, then central processing unit output control signal is given second driving circuit, drive left and right sides machine operation, regulate the level angle of rearview mirror.
Automobile turns left, and then left side back mirror cw horizontally rotates, and bearing circle just returns, and then the left side back mirror is turned back to original position; Automobile is turned right, and then the right rear conter clockwise horizontally rotates, and bearing circle just returns, and then right rear is turned back to original position.The technical program can arrive best angle with the rearview mirror angular adjustment automatically when automobile turning, eliminate blind area and dead angle when turning, makes chaufeur maintain the optimum drive visual field always, improves running safety.
As preferably, described central processing unit links to each other with the reversing automobile gear position sensor; Described control method comprises: described reversing automobile gear position sensor flows to central processing unit with the backing car gear signal that collects, by central processing unit by analysis and handle, the output control signal is given described first driving circuit, drive automobile rearview mirror motor rotation up and down, make automobile rearview mirror rotate 3~10 degree down.Blind area and dead angle when the technical program is eliminated reversing make driver's seat be conducive to reversing, improve the reversing safety.
The invention has the beneficial effects as follows: can in time adjust automobile rearview mirror angle automatically according to the difference of the chaufeur of sitting on the operator's compartment seat, the variation of complete vehicle weight and the variation (comprise left-hand rotation, turn right and reversing) of motoring condition, make rearview mirror be adjusted to best angle, dead zone-eliminating and dead angle, make chaufeur maintain the optimum drive visual field always, improve traveling comfort and the safety of running car.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the automobile rearview mirror intelligence regulation and control system of present embodiment, as shown in Figure 1, comprise central processing unit 1, camera 2 in the car, automobile LOAD CELLS 3, first driving circuit 5, second driving circuit 6, motor 7 up and down, left and right sides motor 8 and the power subsystem unit that operating voltage is provided for whole automobile rearview mirror intelligence regulation and control system, camera 2 in the car, automobile LOAD CELLS 3, first driving circuit 5 links to each other with central processing unit 1 respectively with second driving circuit 6, the motor up and down 7 of first driving circuit 5 and automobile rearview mirror links to each other, the left and right sides motor 8 of second driving circuit 6 and automobile rearview mirror links to each other, it is indoor and be positioned at the place ahead of driver's seat that camera 2 is installed in vehicle drive in the car, according to the locus layout in the operator's compartment, camera also can be installed in oblique the place ahead of driver's seat in the car, its eyes place height basically identical when the setting height(from bottom) of camera and most of chaufeur are sitting on the driver's seat in the car.Vehicle-mounted display unit 14, rotating speed of automobile engine sensor 13, corner of vehicle steering wheel sensor 9 and reversing automobile gear position sensor 12 link to each other with central processing unit 1 respectively, power subsystem unit adopts Vehicular accumulator cell 4, and Vehicular accumulator cell 4 links to each other through automobile ignition switch 10, source switch 11 and automobile rearview mirror intelligence regulation and control system.Store picture recognition module, rearview mirror adjusting parameter calculating module and the reference position of general driver's eyes, automobile rearview mirror standard angle and the corner of vehicle steering wheel limit corresponding with this reference position in the central processing unit 1.
The control method of above-mentioned automobile rearview mirror intelligence regulation and control system comprises the steps:
1. open automobile ignition switch 10, turn on the power switch 11, rotating speed of automobile engine reaches 500RPM, and automobile rearview mirror intelligence regulation and control system is started working;
2. camera 2 is taken the photograph that is sitting in the chaufeur on the chaufeur seat in the car, and flow to central processing unit 1, central processing unit 1 identifies driver's eyes position in the photograph by picture recognition module, regulate parameter calculating module with the reference position comparison of the actual eye position of chaufeur and driver's eyes by rearview mirror then, and calculate the angle that the automobile rearview mirror should be in by light reflection principle, calculate the up and down motor 7 corresponding with this angle and the corner of left and right sides motor 8 again, send control signal respectively by central processing unit 1 at last and give first driving circuit 6 and second driving circuit 7, the motor up and down 7 of control automobile rearview mirror and 8 rotations of left and right sides motor, rearview mirror is turned to and the corresponding angle in locus, driver's eyes place, simultaneously engine speed, rearview mirror vertical angle and level angle are presented on the vehicle-carrying display screen;
3. automobile LOAD CELLS 3 is gathered vehicle complete vehicle weight, and weight data flowed to central processing unit 1, central processing unit 1 judges whether the vehicle complete vehicle weight data that receives changes, as change, then again the chaufeur that is sitting on the chaufeur seat is taken pictures by camera 2 in the central processing unit 1 control car, get back to step 2.;
4. corner of vehicle steering wheel sensor 9 flows to central processing unit 1 with the corner of vehicle steering wheel value that collects, regulating parameter calculating module by rearview mirror compares corner of vehicle steering wheel value and limit, if corner of vehicle steering wheel value value of reaching the limit of, then central processing unit 1 output control signal is given second driving circuit 6, drive 8 work of left and right sides motor, regulate the level angle of rearview mirror; Be specially: automobile turns left, and then left side back mirror cw horizontally rotates, and bearing circle just returns, and then the left side back mirror is turned back to original position; Automobile is turned right, and then the right rear conter clockwise horizontally rotates, and bearing circle just returns, and then right rear is turned back to original position;
5. reversing automobile gear position sensor 12 flows to central processing unit 1 with the backing car gear signal that collects, by central processing unit 1 by analysis and handle, the output control signal is given first driving circuit 5, drives automobile rearview mirror motor 7 rotations up and down, makes the automobile rearview mirror bottom 6 degree;
6. after automobile stopped, engine speed was lower than 500RPM, and ignition lock is closed, and automobile rearview mirror intelligence regulation and control system stops out work.
Certainly, regulation and control system is regulated the rearview mirror angle automatically if chaufeur does not want to use automobile rearview mirror intelligence, and the PTO Power Take Off switch just can make automobile rearview mirror intelligence regulation and control system quit work.
The present invention can in time adjust automobile rearview mirror angle automatically according to the variation of the fat or thin difference of the height of the chaufeur of sitting on the operator's compartment seat, complete vehicle weight and the variation of motoring condition (comprise left-hand rotation, turn right and reversing), make rearview mirror be adjusted to best angle, dead zone-eliminating and dead angle, make chaufeur in vehicle traveling process, maintain the optimum drive visual field always, improve traveling comfort and the safety of running car.