A kind of opening door of vehicle anti-collision warning system and opening door of vehicle anti-collision alarm method
Technical field
The invention belongs to automobile active safety technical field, and in particular to a kind of opening door of vehicle anti-collision warning system and vehicle
Enabling anti-collision alarm method.
Background technology
Vehicle safety is increasingly paid attention to by consumers in general, what active safety technologies were played in terms of vehicle safety
Effect is increasingly protruded, in terms of not only showing the protection to driver and crew, while to the people in traffic environment and non-motor vehicle
Protection in terms of also strengthen.When wherein with opening door of vehicle, the close bicycle of car door and rear, motorcycle collide
Accident is especially prominent, and mortal injury is caused to bicycle, Motor-cyclist, or even dead.Its reason is precisely due to drive people
Member opens the door not to be noted observing rear vehicle condition and enabling of being eager causes car door and back car when getting off(Bicycle, electric car, motor
Car etc.)Collide.Enabling anti-collision warning system is precisely in order to the active safety skill for avoiding such accident from occurring and developing
Art.Current enabling anti-collision warning system is mainly realized using two ways:One kind is to pass through Visual Observations Observations using vision camera
Realize that rear view of vehicle region is detected, the detection range of this mode is limited, low precision compared with and easily by various such environmental effects.
Another is that rear view of vehicle region is detected using Radar Technology, the detection range of the technology is remote, precision is high and not by
The influence of environmental factor, overwhelming majority enabling anti-collision warning system is all to realize mesh using CW with frequency modulation millimetre-wave radar at present
The measurement of target relative distance, orientation angles and speed, but the current this enabling anti-collision alarm system based on Radar Technology
The Control System Design too complex of system, and control accuracy is poor, and anti-collision early warning can not be accurately carried out in most cases, and
Price is higher, and the market competitiveness is poor.
The content of the invention
The technical problems to be solved by the invention are the above-mentioned controls existed for the enabling anti-collision warning system of existing vehicle
System cost processed is high, there is provided a kind of inexpensive, high-precision car based on single Doppler's millimetre-wave radar for the deficiency of low precision
Enabling anti-collision warning system and its anti-collision alarm method.
The technical scheme that present invention solution above-mentioned technical problem is taken is as follows:
A kind of opening door of vehicle anti-collision warning system, including control device 1, visual alarm device, sound sensation warning device and spy
Radar 7 is surveyed, the visual alarm device, sound sensation warning device and detection radar 7 are connected to the control device 1, the control
Device 1 is connected to the opening and closing apparatus for vehicle door and car door door lock master control device 8 of vehicle simultaneously, when the control device 1 passes through detection
When radar 7 knows the moving target of rear view of vehicle close to vehicle body, the control device 1 performs following anti-collision alarm operation:Pass through
Car door door lock master control device 8 judges that now whether car door door lock is in open mode is allowed, if then the control device 1 is controlled
The visual alarm device is alarmed, while judge now whether car door is in open mode by opening and closing apparatus for vehicle door, if
It is that the control device 1 controls the sound sensation warning device to be alarmed simultaneously.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein the control device 1 includes
MCU11, car door door lock master control signal Acquisition Circuit 13, door contact interrupter signal acquisition circuit, processing circuitry of intermediate frequency 16, visual alarm
Circuit 17 and sound sensation alarm control circuit 18 are controlled, the MCU11 is connected to the car door door lock master control signal collection electricity simultaneously
Road 13, door contact interrupter signal acquisition circuit, processing circuitry of intermediate frequency 16, visual alarm control circuit 17 and sound sensation alarm control circuit
18, the car door door lock master control signal Acquisition Circuit 13 is connected to the car door door lock master control device 8 of vehicle, and the MCU is based on car
The opening and closing signal for the car door door lock master control device 8 that door lock master control signal Acquisition Circuit 13 is gathered judges whether car door door lock is located
In allowing open mode, the door contact interrupter signal acquisition circuit is connected to the opening and closing apparatus for vehicle door of vehicle, and the MCU is based on car
Door switch signal acquisition circuit collection opening and closing apparatus for vehicle door opening and closing signal come judge car door whether be in open mode, it is described
Processing circuitry of intermediate frequency 16 is connected to detection radar 7, and the visual alarm control circuit 17 is connected to visual alarm device, and is based on
MCU control signal driving visual alarm device work, the sound sensation alarm control circuit 18 is connected to sound sensation warning device, and
Control signal driving sound sensation warning device work based on MCU.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein the detection radar 7 is installation
Doppler's millimetre-wave radar in car door rear, the processing circuitry of intermediate frequency 16 is doppler radar signal acquisition process circuit,
Enhanced processing is filtered for the radar signal to reception.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein being built-in with A/D in the MCU11
Change-over circuit and phase identification algoritic module, the radar signal for providing processing circuitry of intermediate frequency 16 carry out A/D conversions, and lead to
Cross phase identification algorithm and whether judge the moving target of rear view of vehicle close to vehicle body, MCU11 is not if moving target is away from vehicle body
Process, further judge whether moving target enters default anticollision in MCU if the MCU11 if moving target is close to vehicle body
In alarm region, the control device performs the anti-collision alarm operation only when moving target enters in collision-proof alarm region.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein the opening door of vehicle anti-collision alarm
System is used to carry out anti-collision alarm, institute at least one of the left front car door of vehicle, left back car door, right front door, right tail gate
State door contact interrupter signal acquisition circuit including left front door contact interrupter signal acquisition circuit, left back door contact interrupter signal acquisition circuit,
At least one of right front door switching signal Acquisition Circuit and right tail gate switching signal Acquisition Circuit, the left front car door are opened
OFF signal Acquisition Circuit is connected to the left front opening and closing apparatus for vehicle door of vehicle, and the left back door contact interrupter signal acquisition circuit is connected to
The left back opening and closing apparatus for vehicle door of vehicle, the right front door switching signal Acquisition Circuit is connected to the right front truck door switch dress of vehicle
Put, the right tail gate switching signal Acquisition Circuit is connected to the right rear door switching device of vehicle, the detection radar 7 includes
At least one, is installed on the left side and/or right side of rear view of vehicle.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein the visual alarm device is
LED2, the sound sensation warning device is buzzer 3, and the detection radar 7 is Doppler's millimetre-wave radar, also includes power supply 9,
The power supply 9 is connected to control device 1, LED2 and buzzer 3.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein the control device also includes
GES Acquisition Circuit 12, the GES Acquisition Circuit 12 is connected to the vehicle speed sensor 6 of the MCU11 and vehicle,
The MCU11 determines, when vehicle is in halted state, to perform the anticollision police based on the speed information that vehicle speed sensor 6 is sensed
Show operation.
Further according to opening door of vehicle anti-collision warning system of the present invention, prolong wherein being provided with the MCU11
When control function, after car key pushes OFF grades or is unplugged under vehicle stop state, the MCU start-up studies control function,
Above-mentioned anti-collision alarm operation is performed in latency period, power supply is automatically cut off more than the MCU after latency period and closes.
A kind of opening door of vehicle anti-collision alarm method carried out based on above-mentioned opening door of vehicle anti-collision warning system of the invention, including
Following steps:
Step 1: control device 1 judges whether rear view of vehicle moving target close to vehicle body and enters anti-by detection radar 7
Hit in alarm region, if otherwise control device is not processed, if then performing step 2;
Allow to open Step 2: control device 1 judges now whether car door door lock is in by car door door lock master control device 8
State, if otherwise control device is not processed, if then performing step 3;
Step 3: the control visual alarm device of control device 1 is alarmed, while being judged now by opening and closing apparatus for vehicle door
Whether car door is in open mode, if otherwise control device keeps present situation, if then performing step 4;
Step 4: control device 1 controls sound sensation warning device to be alarmed simultaneously.
Further according to opening door of vehicle anti-collision alarm method of the present invention, wherein also include before step one:Control
Unit 1 processed judges whether vehicle is in halted state by vehicle speed sensor 6, if otherwise control unit is not processed, if then
Perform above-mentioned steps one;Wherein also include after step 4:Control unit repeats step one to the judgement of step 4, and works as
After car key pushes OFF grades or is unplugged under vehicle stop state, power supply is automatically cut off after control unit delay predetermined time section
And close system.
Following technique effect can at least be reached by technical scheme:
1), vehicle provided by the present invention enabling anti-collision warning system rear of driving a vehicle is entered using Doppler's millimetre-wave radar
The detection in region, disclosure satisfy that the actual enabling warning scene demand of vehicle, but more existing enabling anti-collision warning system is realized
Cost is lower, improves the sexual valence competitiveness of vehicle.
2), vehicle provided by the present invention enabling anti-collision warning system can be adopted for practical application scene and user's request
Enabling alarm function is realized with single radar, and innovation visual alarm and sound sensation are alarmed is combined, and improves warning peace
Full rank, more ensure that driver and crew open the door in the case of overall safety and gets off, reduce car door collision accident.
3), provided opening door of vehicle anti-collision warning system innovation of the present invention based on car door door lock state and car door from
Whether vehicle is stopped the opening and closing premise as whole caution system by body open and-shut mode to control the generation of alarm signal, with
Minimum cost realizes high-precision warning of opening the door and controls and do not influenceed by environmental factor, before wide popularization and application
Scape.
Brief description of the drawings
Accompanying drawing 1 is mounting structure schematic diagram of the opening door of vehicle anti-collision warning system of the present invention on vehicle;
Accompanying drawing 2 is the composition structural representation of opening door of vehicle anti-collision warning system of the present invention.
The implication of each reference is as follows in figure:
1- control devices, 2-LED, 3- buzzer, the left front opening and closing apparatus for vehicle door of 4-, the left back opening and closing apparatus for vehicle door of 5-, 6- cars
Fast sensor, 7- detection radars, 8- car door door locks master control device, 9- power supplys, 11-MCU, 12- GES Acquisition Circuit, 13-
Car door door lock master control signal Acquisition Circuit, the left front door contact interrupter signal acquisition circuits of 14-, the left back door contact interrupter signal acquisitions of 15-
Circuit, 16- processing circuitry of intermediate frequency, 17- visual alarms control circuit, 18- sound sensation alarm control circuits.
Embodiment
To make those skilled in the art more fully understand technical scheme, show below in conjunction with the accompanying drawings with specific implementation
Example is described in further detail to opening door of vehicle anti-collision warning system proposed by the present invention, but not by the protection model of the present invention
Enclose and be confined to this.
The basic functional principle of opening door of vehicle anti-collision warning system of the present invention is briefly explained first, it is of the present invention
Opening door of vehicle anti-collision warning system is detected using Doppler's millimetre-wave radar to rear view of vehicle close to target, when target enters
After alarm region, system carries out visual alarm prompting by LED first, if now system detectio is in unlatching to car door door lock
State and when car door will be opened, then system carries out sound sensation prompting again by buzzer, passes through visual alarm and sound sensation is alarmed
It is combined raising alert level.Whether the preferred real-time collection vehicle GES of system of the present invention is to determine vehicle simultaneously
In halted state, preferably after vehicle is in halted state, the warning function of opening door of vehicle anti-collision warning system is opened, more
Preferably after vehicle is in halted state, and key is pushed OFF grades or pulled up by driver, system delay function is opened,
After delay time more than setting, system automatically cuts off power supply and closed, and to reduce static system current loss, waits lower train
When electricity is that firing key is in ACC or ON grades of state on, system re-powers operation.
As shown in figure 1 and 2, opening door of vehicle anti-collision warning system of the present invention includes control device 1, LED2, honeybee
Ring device 3, detection radar 7 and power supply 9, and described power supply 9 is connected to control device 1, LED2 and buzzer 3, work is provided for it
Voltage, and described control device 1 is connected to LED2, buzzer 3 and detection radar 7, while the control device 1 is also attached to
Car door door lock master control device 8, the switching device of each car door and the vehicle speed sensor 6 of vehicle.The control device 1 is based on car door door
Lock the input signal control LED2 and buzzer of master control device 8, each opening and closing apparatus for vehicle door, detection radar 7 and vehicle speed sensor 6
3 warning working condition.The specific control device 1 includes MCU11, GES Acquisition Circuit 12, car door door lock master control
Signal acquisition circuit 13, door contact interrupter signal acquisition circuit, processing circuitry of intermediate frequency 16, visual alarm control circuit 17 and sound sensation report
Alert control circuit 18, described MCU11 as system core processing unit, while being connected to the GES Acquisition Circuit
12nd, car door door lock master control signal Acquisition Circuit 13, door contact interrupter signal acquisition circuit, processing circuitry of intermediate frequency 16, visual alarm control
Circuit 17 and sound sensation alarm control circuit 18 processed, can be based on the corresponding control signal of each sensing acquisition signal generation, described
GES Acquisition Circuit 12 is connected to the vehicle speed sensor 6 of vehicle, and the GES that vehicle speed sensor is gathered passes through meter
Number vehicle speed pulse is calculated as providing after speed to MCU;Described car door door lock master control signal Acquisition Circuit 13 is connected to vehicle
Car door door lock master control device 8, the car door door lock master control device 8 is used for the on off state of all car doors of overall control, only car
After the output car door opening signal of door lock master control device 8, the switching device of each car door can control correspondence car door opening, work as car
Door lock master control device 8 when being closed each opening and closing apparatus for vehicle door can not open car door.The car door door lock master control signal
The switch that Acquisition Circuit 13 gathers car door by car door door lock master control device 8 allows signal, and is transferred to MCU to judge current vehicle
Whether door allows to be opened.Described door contact interrupter signal acquisition circuit is connected to opening and closing apparatus for vehicle door, in practice will according to plan
The door position and quantity of warning, may be selected to set multiple door contact interrupter signal acquisition circuits, are connected to corresponding car door
Switching device, such as common mode are to set left front door contact interrupter signal acquisition circuit respectively for left front car door and left back car door
14 and left back door contact interrupter signal acquisition circuit 15, it is connected to left front opening and closing apparatus for vehicle door 4 and left back opening and closing apparatus for vehicle door
5, this door contact interrupter signal acquisition circuit obtains the switching signal of correspondence car door by corresponding opening and closing apparatus for vehicle door, and transmits
To MCU to judge to recognize vehicle door status, such as when left front car door opening, left front opening and closing apparatus for vehicle door 4 produces car door opening signal
And MCU is transferred to by left front door contact interrupter signal acquisition circuit 14, to facilitate MCU to take the warning of correlation to control.Described
Visual alarm control circuit 17 is connected to LED3, by driving LED3 flickers to be exported to produce visual alarm, described sound sensation report
Alert control circuit 18 is connected to buzzer 2, and sound sensation warning output is produced by driving the sounding of buzzer 2.At described intermediate frequency
Reason circuit 16 is doppler radar signal acquisition process circuit, is connected to detection radar 7, and described detection radar is Doppler's milli
Metre wave radar(Containing microwave antenna), the car door rear of vehicle is installed on, by launching and receiving microwave radar signal, vehicle is realized
Rear area moves the accurate detection of target, and the doppler radar signal of detection is filtered after being transferred to processing circuitry of intermediate frequency 16
Enhanced processing, is provided to predeterminable formation radar alarm region in MCU, described MCU.Vehicle provided by the present invention is opened
Door anti-collision warning system specific work process be:By the mobile target of the real-time detection rear view of vehicle region of detection radar 7, and
The I that Doppler's millimetre-wave radar front end is returned, after Q two-way echo signal of intermediate frequency is handled by processing circuitry of intermediate frequency 18, then passes through
A/D change-over circuits built in MCU11 carry out A/D and are converted into data signal, then judge moving target by phase identification algorithm
It is relatively close or remote with this car, MCU controls do not export warning drive signal if moving target is away from this car, if
Judge moving target close to Ben Che and enter MCU in default relative alarm region when, car door door lock master control signal Acquisition Circuit
13 obtain now car door door lock state enable signal by car door door lock master control device 8, if car door door lock master control signal is gathered
Circuit 13 reads now car door door lock master control device 8 and is closed(Driver and crew can not be opened under opening and closing apparatus for vehicle door
Car), then MCU controls do not export warning drive signal, if car door door lock master control signal Acquisition Circuit 13 reads now car door
Door lock master control device 8 is in opening(I.e. car door door lock, which is in, allows opening, and driver and crew can open door contact interrupter
Device is got off), then MCU to visual alarm control the output drive signal of circuit 17, by visual alarm control circuit 17 drive LED3
Lighted, visual alarm is carried out by lighting LED3.Simultaneously door contact interrupter signal acquisition circuit collection door contact interrupter is filled
The signal put, if now driver and crew's car door to be opened prepares to get off, driver and crew stir and will touched after door handle switches
Send out opening and closing apparatus for vehicle door corresponding and produce enabling signal and MCU is transferred to by door contact interrupter signal acquisition circuit, then MCU to
The output drive signal of sound sensation alarm control circuit 18, drives buzzer 2 to carry out sound sensation alarm by sound sensation alarm control circuit 18, with
This dual-alarm reminds driver and crew now to open the door may be dangerous, it should be noted that observation rear view of vehicle vehicle condition, it is ensured that safe feelings
Condition downward swing door is got off.With now opening and closing apparatus for vehicle door should be collected by the car door i.e. door contact interrupter signal acquisition circuit that is not opened
Be not triggered unlatching, then do not provide collection signal to MCU, MCU is not also to the output drive signal of sound sensation alarm control circuit 18.
After car door door lock master control device 8 is again at closed mode, then MCU controls are not in output warning drive signal, LED halts
It is bright.
The further decision design of such scheme to the present invention is thought of as(Nonessential):The opening door of vehicle anticollision police
Show system before above-mentioned warning function is performed, the speed information that can be gathered first by GES Acquisition Circuit judges vehicle
State, preferably when MCU according to speed information determine vehicle be in halted state when, just perform above-mentioned warning function, but
The judgement can be saved, i.e., includes not allowing arbitrarily to open car door in vehicle traveling under any state, carries out this judgement
It is main to consider that car door door lock master control device is to be closed to most vehicles under steam, open above-mentioned report naturally
Alert function.
Still more preferably design is thought of as:Delays time to control function is provided with MCU, when vehicle be in halted state under and
After key is pushed OFF grades or pulled up by driver, MCU delay functions are opened, and system still performs above-mentioned report in latency period
Alert arbitration functions, after delay time more than setting, system automatically cuts off power supply and closed, to reduce static system electric current damage
Consumption, when waiting on next vehicle electricity i.e. firing key in ACC or ON grades of state, system re-powers operation.
Several preferred embodiments of opening door of vehicle anti-collision warning system of the present invention are provided below in conjunction with actual conditions.This
A little embodiments are, to the further preferred of above-mentioned technical proposal, to be not meant to limit to the protection of the present invention according to actual conditions
In this.
Embodiment 1
Refering to Fig. 1 and accompanying drawing 2, a kind of opening door of vehicle anti-collision warning system is specifically designed for the left front car door of vehicle and left back car door
Set, including control device 1, LED2, buzzer 3, detection radar 7 and 12V power supply 9, wherein the control device 1 is specific again
Including MCU(SCM system)11st, GES Acquisition Circuit 12, car door door lock master control signal Acquisition Circuit 13, left front car door
Switching signal Acquisition Circuit 14, left back door contact interrupter signal acquisition circuit 15, the IF process electricity of doppler radar signal collection
Road 16, sound sensation alarm control circuit 18 and visual alarm control circuit 17, each circuit of the MCU connections, the GES are adopted
Collector 12 is used to gather this car GES, is connected to the vehicle speed sensor of vehicle.The car door door lock master control signal collection
Circuit 13 is connected to the car door door lock master control device 8 of vehicle, for detecting car door door lock state, is judged by car door door lock state
Whether current car door is in the state for allowing to be opened.Described left front door contact interrupter signal acquisition circuit 14, left back car door are opened
OFF signal Acquisition Circuit 15 is connected to left front opening and closing apparatus for vehicle door 4 and left back opening and closing apparatus for vehicle door 5, for obtaining left front car
The on off state of door and left back car door.Described Doppler's millimeter wave detection radar(Containing microwave antenna)For launching and receiving micro-
Ripple signal, realizes that rear view of vehicle region moves the detection of target.Described doppler radar signal collection processing circuitry of intermediate frequency 16
In collection doppler radar signal and carry out filter amplifying processing.The visual alarm control circuit 17 and sound sensation alarm control
Circuit 18 processed is used to control and drive LED visual alarm devices and buzzer sound sensation warning device to implement alarm.
The I returned during work by Doppler's millimetre-wave radar front end, Q two-way echo signal of intermediate frequency passes through IF process electricity
After road 18 is handled, A/D is carried out by the A/D change-over circuits built in MCU11 and is converted into data signal, is then calculated by phase identification
Method judges that moving target and this car are relatively close or remote, and system is not alarmed if moving target is away from this car.If
When moving target is close to Ben Che and entrance relative alarm region, if now car door door lock state is in permission opening,
MCU lights LED3 by control first and carries out visual alarm, if now driver and crew's car door to be opened prepares to get off, when its group
Dynamic door handle triggering opening and closing apparatus for vehicle door produces the moment of signal, and MCU control buzzers carry out sound sensation alarm, thus by regarding
Feel, sound sensation dual-alarm prompting driver and crew now open left front car door or left back car door may be dangerous, it should be noted that observation car
Rear vehicle condition, it is ensured that open the door and get off in the case of safety.
The embodiment 1 is the situation for travelling and leaning on the rightmost side in track to stop by most right lane for vehicle, using single
Doppler Lidar System is installed on the inside of vehicle left back, for detecting vehicle left back, it is ensured that the left front car door of vehicle, left back car
The enabling security of door, program cost is lower and pervasive in a variety of domestic vehicles.
Embodiment 2
The embodiment 2 is for not stopped unrestricted situation by the situation parking of embodiment 1, then in rear view of vehicle
A detection radar need to be respectively installed on the inside of left and right is used for the left and right sides of complete detection rear view of vehicle, in the technical scheme, in car
Left and right rear respectively install a detection radar, and control device in simultaneously including left front door contact interrupter signal acquisition circuit,
Left back door contact interrupter signal acquisition circuit, right front door switching signal Acquisition Circuit and right tail gate switching signal Acquisition Circuit,
It is connected to left front opening and closing apparatus for vehicle door, left back opening and closing apparatus for vehicle door, right front truck door switch unit and the right tail gate of vehicle
Switching device, other set attachment structure with above-described embodiment 1, the enabling anticollision progress that the program can be to each car door of vehicle
Alarm, but cost can be doubled.
Embodiment 3
The embodiment 3 can do various deformation according to actual needs in the technical concept principle of the present invention, primarily with respect to anti-
Setting can arbitrarily be selected by hitting the selection of the car door of alarm, as long as selecting to set detection radar and corresponding in the way of the present invention
Door contact interrupter signal acquisition circuit;Other detection radar therein can not also use Doppler radar, using it is existing its
He can also realize enabling anti-collision alarm by radar, as long as the basic fundamental based on the present invention conceives the scheme to be formed and belongs to this patent
Protection domain.
To sum up the present invention uses Doppler's millimetre-wave radar to target close in rear view of vehicle certain area coverage
Detected, after close target is detected into alarm region, system carries out visual alarm by LED first, then
Select to blow a whistle by buzzer again according to the behavior of driver and crew and carry out sound sensation alarm, farthest to remind driver and crew
Rear vehicle condition is splashed, the generation of collision accident is prevented.The present invention judges that vehicle is by gathering this car GES simultaneously
It is no to stop, by the current car door of collecting vehicle door lock condition adjudgement whether in open mode is allowed, by gathering door contact interrupter
Signal determines to judge whether car door is actually opened, multiple to judge generation maltilevel security alert levels, it is to avoid alarm error.Together
Shi Caiyong Doppler's millimetre-wave radars improve sensing precision, and Radar Algorithm and logical control program are integrated in into a MCU
On, reach and simplify control structure, with simple in construction, practical and low cost and other advantages.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, but the invention is not limited in this.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.