CN104986104A - Vehicle door opening anti-collision warning system and vehicle door opening anti-collision warning method - Google Patents
Vehicle door opening anti-collision warning system and vehicle door opening anti-collision warning method Download PDFInfo
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Abstract
The invention provides a vehicle door opening anti-collision warning system and a vehicle door opening anti-collision warning method. The vehicle door opening anti-collision warning system comprises a control device, a vision alarm device, a sound sensation alarm device and detection radar. The vision alarm device, the sound sensation alarm device and the detection radar are connected to the control device. The control device is connected to a vehicle door opening and closing device and a vehicle door lock main control device of a vehicle at the same time. When the control device obtains that a moving target behind the vehicle gets close to a vehicle body through the detection radar, whether a vehicle door lock is in the opening-allowable state or not is judged through the vehicle door lock main control device, and the control device controls the vision alarm device to give an alarm if the vehicle door lock is in the opening-allowable state; and whether a vehicle door is in an opened state or not at the moment is judged through the vehicle door opening and closing device at the same time, and the control device controls the sound sensation alarm device to give an alarm if the vehicle door is in the opened state. By means of the vehicle door opening anti-collision warning system and the vehicle door opening anti-collision warning method, the high-accuracy door opening alarm control is achieved at the lowest cost and is not influenced by environmental factors, the occurrence probability of vehicle door collision accidents is greatly lowered, and wide application and popularization prospects are achieved.
Description
Technical field
The invention belongs to automobile active safety technical field, be specifically related to a kind of opening door of vehicle anti-collision warning system and opening door of vehicle anti-collision alarm method.
Background technology
Vehicle safety is more and more subject to the attention of consumers in general; the effect that active safety technologies plays in vehicle safety is more and more outstanding; not only show the protection aspect to driver and crew, the protection aspect of the people in traffic environment and non-power-driven vehicle is also being strengthened simultaneously.Time wherein with opening door of vehicle, the accident that the close bicycle of car door and rear, motor bike collide is particularly outstanding, causes mortal injury to bicycle, motorcycle driver, even dead.Its reason is exactly that enabling of being eager causes car door and back car (bicycle, battery-driven car, motor bike etc.) to collide owing to not noting when driver and crew open the door and get off observing rear vehicle condition.Enabling anti-collision warning system is an active safety technologies of exploitation in order to avoid such accident occurs just.Current enabling anti-collision warning system is mainly adopted and is realized in two ways: one adopts vision camera to realize rear view of vehicle regionally detecting by Visual Observations Observations, and the detection range of this mode is limited, and low precision is comparatively and easily by various such environmental effects.Another adopts Radar Technology to detect rear view of vehicle region, the detection range of this technology is far away, precision is high and not by the impact of environmental factor, current most enabling anti-collision warning system is all the measurement adopting the relative distance of Continuous Wave with frequency modulation millimeter wave radar realize target, orientation angles and speed, but the Control System Design too complex of the current this enabling anti-collision warning system based on Radar Technology, and control accuracy is poor, in most cases can not carry out anti-collision early warning accurately, and price is higher, the market competitiveness is poor.
Summary of the invention
Technical matters to be solved by this invention is that the above-mentioned control system cost existed for the enabling anti-collision warning system of existing vehicle is high, the deficiency of low precision, provides a kind of low cost based on single Doppler's millimeter wave radar, high-precision opening door of vehicle anti-collision warning system and anti-collision alarm method thereof.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
A kind of opening door of vehicle anti-collision warning system, comprise control setup 1, visual alarm device, sound sensation warning device and acquisition radar 7, described visual alarm device, sound sensation warning device and acquisition radar 7 are connected to described control setup 1, described control setup 1 is connected to opening and closing apparatus for vehicle door and the car door door lock master control device 8 of vehicle simultaneously, when described control setup 1 knows the moving target of rear view of vehicle near vehicle body by acquisition radar 7, described control setup 1 performs the operation of following anti-collision alarm: judge now whether car door door lock is in permission open mode by car door door lock master control device 8, if then described control setup 1 controls described visual alarm device and reports to the police, judge now whether car door is in open mode by opening and closing apparatus for vehicle door simultaneously, if then described control setup 1 controls described sound sensation warning device and reports to the police simultaneously.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein said control setup 1 comprises 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 control circuit 17 and sound sensation alarm control circuit 18, described MCU11 is connected to described car door door lock master control signal Acquisition Circuit 13 simultaneously, door contact interrupter signal acquisition circuit, processing circuitry of intermediate frequency 16, visual alarm control circuit 17 and sound sensation alarm control circuit 18, described car door door lock master control signal Acquisition Circuit 13 is connected to the car door door lock master control device 8 of vehicle, based on the opening and closing signal of the car door door lock master control device 8 that car door door lock master control signal Acquisition Circuit 13 gathers, described MCU judges whether car door door lock is in permission open mode, described door contact interrupter signal acquisition circuit is connected to the opening and closing apparatus for vehicle door of vehicle, based on the opening and closing signal of the opening and closing apparatus for vehicle door of door contact interrupter signal acquisition circuit collection, described MCU judges whether car door is in open mode, described processing circuitry of intermediate frequency 16 is connected to acquisition radar 7, described visual alarm control circuit 17 is connected to visual alarm device, and drive visual alarm device work based on the control signal of MCU, described sound sensation alarm control circuit 18 is connected to sound sensation warning device, and drive the work of sound sensation warning device based on the control signal of MCU.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein said acquisition radar 7 is for being installed on Doppler's millimeter wave radar at car door rear, described processing circuitry of intermediate frequency 16 is doppler radar signal acquisition process circuit, for carrying out filter amplifying processing to the radar signal received.
Further according to opening door of vehicle anti-collision warning system of the present invention, A/D change-over circuit and phase identification algoritic module is built-in with in wherein said MCU11, radar signal for providing processing circuitry of intermediate frequency 16 carries out A/D conversion, and judge that whether the moving target of rear view of vehicle is near vehicle body by phase identification algorithm, if moving target is away from vehicle body, MCU11 does not process, if moving target is near vehicle body, described MCU11 judges whether moving target enters in collision-proof alarm region default in MCU further, only when moving target enters in collision-proof alarm region, described control setup performs the operation of described anti-collision alarm.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein said opening door of vehicle anti-collision warning system is used for the left front car door to vehicle, left back car door, right front car door, right back car door one of at least carry out anti-collision alarm, described door contact interrupter signal acquisition circuit comprises left front door contact interrupter signal acquisition circuit, left back door contact interrupter signal acquisition circuit, in right front door contact interrupter signal acquisition circuit and right back door contact interrupter signal acquisition circuit one of at least, described left front door contact interrupter signal acquisition circuit is connected to the left front opening and closing apparatus for vehicle door of vehicle, described left back door contact interrupter signal acquisition circuit is connected to the left back opening and closing apparatus for vehicle door of vehicle, described right front door contact interrupter signal acquisition circuit is connected to the right front opening and closing apparatus for vehicle door of vehicle, described right back door contact interrupter signal acquisition circuit is connected to the right back opening and closing apparatus for vehicle door of vehicle, described acquisition radar 7 comprises at least one, be installed on left side and/or the right side of rear view of vehicle.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein said visual alarm device is LED2, described sound sensation warning device is buzzer phone 3, described acquisition radar 7 is Doppler's millimeter wave radar, also include power supply 7, described power supply 9 is connected to control setup 1, LED2 and buzzer phone 3.
Further according to opening door of vehicle anti-collision warning system of the present invention, wherein said control setup also includes vehicle speed signal Acquisition Circuit 12, described vehicle speed signal Acquisition Circuit 12 is connected to the car speed sensor 6 of described MCU11 and vehicle, described MCU11 determines when vehicle is in halted state based on the speed information that car speed sensor 6 senses, and performs the operation of described anti-collision alarm.
Further according to opening door of vehicle anti-collision warning system of the present invention, delays time to control function is provided with in wherein said MCU11, when car key under vehicle stop state pushes OFF shelves or after being unplugged, described MCU start-up study controlling functions, in latency period, perform the operation of above-mentioned anti-collision alarm, described MCU automatic cut-off power after exceeding latency period is also closed.
Based on the opening door of vehicle anti-collision alarm method that the above-mentioned opening door of vehicle anti-collision warning system of the present invention carries out, comprise the following steps:
By acquisition radar 7, step one, control setup 1 judge that whether rear view of vehicle moving target enters in collision-proof alarm region near vehicle body, then control setup does not process if not, if then perform step 2;
By car door door lock master control device 8, step 2, control setup 1 judge now whether car door door lock is in permission open mode, and then control setup does not process if not, if then perform step 3;
Step 3, control setup 1 control visual alarm device and report to the police, and judge now whether car door is in open mode by opening and closing apparatus for vehicle door simultaneously, and then control setup keeps present situation if not, if then perform step 4;
Step 4, control setup 1 control sound sensation warning device simultaneously and report to the police.
Further according to opening door of vehicle anti-collision alarm method of the present invention, wherein also comprise before step one: by car speed sensor 6, control unit 1 judges whether vehicle is in halted state, then control unit does not process if not, if then perform above-mentioned steps one; Wherein also to comprise after step 4: the judgement of control unit repeated execution of steps one to step 4, and when car key under vehicle stop state pushes OFF shelves or after being unplugged, automatic cut-off power after control unit delay predetermined time section shutdown system.
At least following technique effect can be reached by technical scheme of the present invention:
1), the enabling anti-collision warning system of vehicle provided by the present invention adopts Doppler's millimeter wave radar to carry out the detection of car rear area, the actual enabling warning scene demand of vehicle can be met, but it is lower that more existing enabling anti-collision warning system realizes cost, improve the sexual valence competitive power of car load.
2), the enabling anti-collision warning system of vehicle provided by the present invention can adopt single radar to realize enabling alarm function for practical application scene and user's request, and visual alarm and sound sensation being reported to the police of innovation combines, improve warning safe rank, more ensure that driver and crew get off at the situation downward swing door of overall safety, reduce car door collision case.
3), provided opening door of vehicle anti-collision warning system innovation of the present invention controls the generation of alarm signal based on automobile door lock status and car door self open and-shut mode, and whether vehicle is stopped the opening and closing prerequisite as whole caution system, achieve high-precision warning of opening the door with minimum cost control and not by the impact of environmental factor, there is wide popularizing application prospect.
Accompanying drawing explanation
Accompanying drawing 1 is the mounting structure schematic diagram of 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.
In figure, the implication of each Reference numeral is as follows:
1-control setup, 2-LED, 3-buzzer phone, 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-car speed sensor, 7-acquisition radar, 8-car door door lock master control device, 9-power supply, 11-MCU, 12-vehicle speed signal Acquisition Circuit, 13-car door door lock master control signal Acquisition Circuit, 14-left front door contact interrupter signal acquisition circuit, the left back door contact interrupter signal acquisition circuit of 15-, 16-processing circuitry of intermediate frequency, 17-visual alarm control circuit, 18-sound sensation alarm control circuit.
Detailed description of the invention
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing and concrete exemplifying embodiment, the opening door of vehicle anti-collision warning system that the present invention proposes being described in further detail, but protection scope of the present invention not being confined to this.
First the basic functional principle of brief description opening door of vehicle anti-collision warning system of the present invention, opening door of vehicle anti-collision warning system of the present invention adopts Doppler's millimeter wave radar to detect close to target rear view of vehicle, after target enters alarm region, first system carries out visual alarm prompting by LED, if now systems axiol-ogy to car door door lock be in opening and car door is about to open time, then system carries out sound sensation prompting by buzzer phone again, to be reported to the police the raising alert level that combines by visual alarm and sound sensation.System of the present invention preferred Real-time Collection vehicle speed signal is to determine whether vehicle is in halted state simultaneously, it is preferred after vehicle is in halted state, the warning function of opening door of vehicle anti-collision warning system is opened, preferred vehicle of working as is in halted state, and key is pushed OFF shelves by chaufeur or after pulling up, system delay function is opened, when after the delay time exceeding setting, system automatic cut-off power is also closed, to reduce static system current loss, etc. next vehicle power on i.e. ignition key be in ACC or ON shelves state time, system re-powers operation.
As shown in figure 1 and 2, opening door of vehicle anti-collision warning system of the present invention comprises control setup 1, LED2, buzzer phone 3, acquisition radar 7 and power supply 9, described power supply 9 is connected to control setup 1, LED2 and buzzer phone 3, for it provides operating voltage, and described control setup 1 is connected to LED2, buzzer phone 3 and acquisition radar 7, simultaneously described control setup 1 is also connected to the car door door lock master control device 8 of vehicle, the switching device of each car door and car speed sensor 6.Described control setup 1 is based on car door door lock master control device 8, each opening and closing apparatus for vehicle door, acquisition radar 7 and the incoming signal control LED2 of car speed sensor 6 and the warning mode of operation of buzzer phone 3.Concrete described control setup 1 comprises MCU11, vehicle speed signal 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 alarm control circuit 18, described MCU11 is as the core processing unit of system, be connected to described vehicle speed signal Acquisition Circuit 12 simultaneously, 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, corresponding control signal can be generated based on each sensing acquisition signal, described vehicle speed signal Acquisition Circuit 12 is connected to the car speed sensor 6 of vehicle, and be provided to MCU after the vehicle speed signal of car speed sensor collection is calculated to be the speed of a motor vehicle by counting vehicle speed pulse, described car door door lock master control signal Acquisition Circuit 13 is connected to the car door door lock master control device 8 of vehicle, described car door door lock master control device 8 is for the on off state of all car doors of overall control, after only having car door door lock master control device 8 to export car door opening signal, the switching device of each car door can control corresponding car door opening, and when car door door lock master control device 8 is in closed condition, each opening and closing apparatus for vehicle door cannot open car door.The switch that described car door door lock master control signal Acquisition Circuit 13 gathers car door by car door door lock master control device 8 allows signal, and is transferred to MCU to judge whether current car door allows to be opened.Described door contact interrupter signal acquisition circuit is connected to opening and closing apparatus for vehicle door, according to the car door position of intending warning and quantity in reality, can select to arrange multiple door contact interrupter signal acquisition circuit, be connected to corresponding opening and closing apparatus for vehicle door, mode as common arranges left front door contact interrupter signal acquisition circuit 14 and left back door contact interrupter signal acquisition circuit 15 respectively for left front car door and left back car door, be 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 on-off signal of corresponding car door by corresponding opening and closing apparatus for vehicle door, and be transferred to MCU to judge to identify vehicle door status, as when left front car door opening, left front opening and closing apparatus for vehicle door 4 produces car door opening signal and is transferred to MCU by left front door contact interrupter signal acquisition circuit 14, take the warning of being correlated with to control to facilitate MCU.Described visual alarm control circuit 17 is connected to LED3, and produce visual alarm by driving LED 3 flicker and export, described sound sensation alarm control circuit 18 is connected to buzzer phone 2, produces sound sensation warning export by driving buzzer phone 2 sounding.Described processing circuitry of intermediate frequency 16 is doppler radar signal acquisition process circuit, be connected to acquisition radar 7, described acquisition radar is Doppler's millimeter wave radar (containing microwave antenna), be installed on the car door rear of vehicle, by transmitting and receiving microwave radar signal, realize the accurate detection of rear view of vehicle region moving target, filter amplifying processing is carried out after the doppler radar signal detected is transferred to processing circuitry of intermediate frequency 16, then MCU is supplied to, predeterminable formation radar alarm region in described MCU.The specific works process of opening door of vehicle anti-collision warning system provided by the present invention is: by the moving target in acquisition radar 7 real-time detection rear view of vehicle region, and the I that Doppler's millimeter wave radar front end returns, after Q two-way echo signal of intermediate frequency is processed by processing circuitry of intermediate frequency 18, carry out A/D by the A/D change-over circuit that MCU11 is built-in again and convert digital signal to, then by phase identification algorithm judge moving target and this car be relative near or away from, if moving target is away from this car, MCU controls not output alarm drive singal, if judge moving target close to Ben Che and enter in MCU preset relative alarm region time, car door door lock master control signal Acquisition Circuit 13 obtains 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 Acquisition Circuit 13 reads now car door door lock master control device 8 and is in closed condition (driver and crew cannot open opening and closing apparatus for vehicle door and get off), then MCU controls not output alarm drive singal, if car door door lock master control signal Acquisition Circuit 13 reads now car door door lock master control device 8 and is in opening (namely car door door lock is in permission opening, driver and crew can open opening and closing apparatus for vehicle door and get off), then MCU is to visual alarm control circuit 17 output drive signal, luminescence is carried out by visual alarm control circuit 17 driving LED 3, visual alarm is carried out by lighting LED3.Simultaneously door contact interrupter signal acquisition circuit gathers the signal of opening and closing apparatus for vehicle door, if when now driver and crew prepare to get off for opening car door, driver and crew just can trigger corresponding opening and closing apparatus for vehicle door and produce enabling signal and be transferred to MCU by door contact interrupter signal acquisition circuit after stirring door handle switches, then MCU is to sound sensation alarm control circuit 18 output drive signal, buzzer phone 2 is driven to carry out sound sensation warning by sound sensation alarm control circuit 18, reminding driver and crew now to open the door with this dual-alarm may be dangerous, splash rear view of vehicle vehicle condition, guarantee that safe situation downward swing door is got off.With should now collecting opening and closing apparatus for vehicle door and not to be triggered unlatching by the car door i.e. door contact interrupter signal acquisition circuit that is not opened, then do not provide collection signal to MCU, MCU be also to sound sensation alarm control circuit 18 output drive signal.After car door door lock master control device 8 is in closed condition again, then MCU controls not at output alarm drive singal, and LED stops lighting.
The further decision design of such scheme of the present invention is thought of as (nonessential): described opening door of vehicle anti-collision warning system is before the above-mentioned warning function of execution, the speed information that can first be gathered by vehicle speed signal Acquisition Circuit judges the state of vehicle, it is preferred when MCU is in halted state according to speed information determination vehicle, just perform above-mentioned warning function, but also can save this judgement, namely comprise under any state during vehicle travels and do not allow arbitrarily to open car door, the main consideration carrying out this judgement be most vehicle under steam car door door lock master control device be in closed condition, nature can not open above-mentioned warning function.
Further decision design is thought of as: be provided with delays time to control function in MCU, when under vehicle is in halted state and key to be pushed OFF shelves by chaufeur or after pulling up, MCU delay function is opened, in latency period, system still performs above-mentioned alarm decision function, when after the delay time exceeding setting, system automatic cut-off power is also closed, to reduce static system current loss, etc. next vehicle power on i.e. ignition key be in ACC or ON shelves state time, 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.These embodiments be according to actual conditions to technique scheme further preferably, and do not mean that protection of the present invention be confined to this.
embodiment 1
Consult Fig. 1 and accompanying drawing 2, a kind of opening door of vehicle anti-collision warning system is arranged for the left front car door of vehicle and left back car door specially, comprise control setup 1, LED2, buzzer phone 3, the power supply 7 of acquisition radar 7 and 12V, wherein said control setup 1 specifically comprises again MCU(Single Chip Microcomputer (SCM) system) 11, vehicle speed signal Acquisition Circuit 12, car door door lock master control signal Acquisition Circuit 13, left front door contact interrupter signal acquisition circuit 14, left back door contact interrupter signal acquisition circuit 15, the processing circuitry of intermediate frequency 16 that doppler radar signal gathers, sound sensation alarm control circuit 18 and visual alarm control circuit 17, described MCU connects each circuit, described vehicle speed signal Acquisition Circuit 12 is for gathering this car vehicle speed signal, be connected to the car speed sensor of vehicle.Described car door door lock master control signal Acquisition Circuit 13 is connected to the car door door lock master control device 8 of vehicle, for inspection vehicle door lock state, judges whether current car door is in the state allowing to be opened by automobile door lock status.Described left front door contact interrupter signal acquisition circuit 14, left back door contact interrupter signal acquisition circuit 15 are 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 the on off state of left front car door and left back car door.Described Doppler's millimeter wave detection radar (containing microwave antenna), for transmitting and receiving microwave signal, realizes the detection of rear view of vehicle region moving target.Described doppler radar signal gathers processing circuitry of intermediate frequency 16 in gathering doppler radar signal and carrying out filter amplifying processing.Described visual alarm control circuit 17 and sound sensation alarm control circuit 18 are for control and warning implemented by driving LED visual alarm device and buzzer phone sound sensation warning device.
By I that Doppler's millimeter wave radar front end returns during work, after Q two-way echo signal of intermediate frequency is processed by processing circuitry of intermediate frequency 18, carry out A/D by the A/D change-over circuit that MCU11 is built-in and convert digital signal to, then by phase identification algorithm judge moving target and this car be relative near or away from, if moving target is away from this car, system is not reported to the police.If moving target is close to Ben Che and when entering relative alarm region, if now automobile door lock status is in permission opening, then first MCU lights LED3 by control and carries out visual alarm, if now driver and crew prepare to get off for opening car door, stir grip handle when it and trigger the moment that opening and closing apparatus for vehicle door produces signal, MCU controls buzzer phone and carries out sound sensation warning, thus pass through vision, sound sensation dual-alarm reminds driver and crew now to open left front car door or left back car door may be dangerous, splash rear view of vehicle vehicle condition, guarantee that safe situation downward swing door is got off.
This embodiment 1 is the situation travelling by most right lane for vehicle and stop by the rightmost side in track, single Doppler Lidar System is adopted to be installed on inside vehicle left back, for detection vehicle left back, guarantee the enabling safety of the left front car door of vehicle, left back car door, program cost is lower and pervasive in multiple domestic vehicle.
embodiment 2
This embodiment 2 stops for the situation not according to embodiment 1 namely to stop unrestricted situation, then about rear view of vehicle, the left and right sides of an acquisition radar for complete detection rear view of vehicle respectively need be installed in inner side, in this technical scheme, at the rear, left and right of vehicle, an acquisition radar is respectively installed, and in control setup, comprise left front door contact interrupter signal acquisition circuit simultaneously, left back door contact interrupter signal acquisition circuit, right front door contact interrupter signal acquisition circuit and right back door contact interrupter signal acquisition circuit, be connected to the left front opening and closing apparatus for vehicle door of vehicle, left back opening and closing apparatus for vehicle door, right front opening and closing apparatus for vehicle door and right back opening and closing apparatus for vehicle door, other arrange connection structure with above-described embodiment 1, the program can be reported to the police to the enabling of each car door of vehicle is crashproof, but cost can double.
embodiment 3
This embodiment 3 can do various deformation according to actual needs in technical conceive principle of the present invention, first the selection about the car door of collision-proof alarm can be selected arbitrarily to arrange, as long as arrange acquisition radar and corresponding door contact interrupter signal acquisition circuit according to way selection of the present invention; Acquisition radar wherein also can not adopt Doppler radar in addition, adopts other radars existing also can realize enabling anti-collision alarm, as long as the scheme formed based on basic fundamental design of the present invention all belongs to this patent protection domain.
To sum up the present invention adopts Doppler's millimeter wave radar to detect target close in rear view of vehicle certain area coverage, after detecting that close target enters alarm region, first system carries out visual alarm by LED, then again select to be blown a whistle by buzzer phone to carry out sound sensation warning according to the behavior of driver and crew, farthest to remind driver and crew to splash rear vehicle condition, prevent the generation of collision case.By gathering this car vehicle speed signal, the present invention simultaneously judges whether vehicle stops, judge whether current car door is in permission open mode by gathering automobile door lock status, determine to judge whether car door reality is opened by gathering door contact interrupter signal, multiple judgement produces maltilevel security alert levels, avoids warning error.Adopt Doppler millimeter wave radar to improve sensing precision simultaneously, Radar Algorithm and logical control program are all integrated on a MCU, reach and simplify control structure, there is simple, the practical and low cost and other advantages of structure.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. an opening door of vehicle anti-collision warning system, it is characterized in that, comprise control setup (1), visual alarm device, sound sensation warning device and acquisition radar (7), described visual alarm device, sound sensation warning device and acquisition radar (7) are connected to described control setup (1), described control setup (1) is connected to opening and closing apparatus for vehicle door and car door door lock master control device (8) of vehicle simultaneously, when described control setup (1) knows the moving target of rear view of vehicle near vehicle body by acquisition radar (7), described control setup (1) performs the operation of following anti-collision alarm: judge now whether car door door lock is in permission open mode by car door door lock master control device (8), if then described control setup (1) controls described visual alarm device and reports to the police, judge now whether car door is in open mode by opening and closing apparatus for vehicle door simultaneously, if then described control setup (1) controls described sound sensation warning device and reports to the police simultaneously.
2. opening door of vehicle anti-collision warning system according to claim 1, it is characterized in that, described control setup (1) comprises MCU(11), 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), described MCU(11) be connected to described car door door lock master control signal Acquisition Circuit (13) simultaneously, door contact interrupter signal acquisition circuit, processing circuitry of intermediate frequency (16), visual alarm control circuit (17) and sound sensation alarm control circuit (18), described car door door lock master control signal Acquisition Circuit (13) is connected to car door door lock master control device (8) of vehicle, based on the opening and closing signal of car door door lock master control device (8) that car door door lock master control signal Acquisition Circuit (13) gathers, described MCU judges whether car door door lock is in permission open mode, described door contact interrupter signal acquisition circuit is connected to the opening and closing apparatus for vehicle door of vehicle, based on the opening and closing signal of the opening and closing apparatus for vehicle door of door contact interrupter signal acquisition circuit collection, described MCU judges whether car door is in open mode, described processing circuitry of intermediate frequency (16) is connected to acquisition radar (7), described visual alarm control circuit (17) is connected to visual alarm device, and drive visual alarm device work based on the control signal of MCU, described sound sensation alarm control circuit (18) is connected to sound sensation warning device, and drive the work of sound sensation warning device based on the control signal of MCU.
3. opening door of vehicle anti-collision warning system according to claim 2, it is characterized in that, described acquisition radar (7) is for being installed on Doppler's millimeter wave radar at car door rear, described processing circuitry of intermediate frequency (16) is doppler radar signal acquisition process circuit, for carrying out filter amplifying processing to the radar signal received.
4. the opening door of vehicle anti-collision warning system according to Claims 2 or 3, it is characterized in that, described MCU(11) in be built-in with A/D change-over circuit and phase identification algoritic module, radar signal for providing processing circuitry of intermediate frequency (16) carries out A/D conversion, and judge that whether the moving target of rear view of vehicle is near vehicle body by phase identification algorithm, if moving target is away from vehicle body, MCU(11) do not process, if moving target is near vehicle body, described MCU(11) judge whether moving target enters in collision-proof alarm region default in MCU further, only when moving target enters in collision-proof alarm region, described control setup performs the operation of described anti-collision alarm.
5. the opening door of vehicle anti-collision warning system according to any one of claim 2-4, it is characterized in that, described opening door of vehicle anti-collision warning system is used for the left front car door to vehicle, left back car door, right front car door, right back car door one of at least carry out anti-collision alarm, described door contact interrupter signal acquisition circuit comprises left front door contact interrupter signal acquisition circuit, left back door contact interrupter signal acquisition circuit, in right front door contact interrupter signal acquisition circuit and right back door contact interrupter signal acquisition circuit one of at least, described left front door contact interrupter signal acquisition circuit is connected to the left front opening and closing apparatus for vehicle door of vehicle, described left back door contact interrupter signal acquisition circuit is connected to the left back opening and closing apparatus for vehicle door of vehicle, described right front door contact interrupter signal acquisition circuit is connected to the right front opening and closing apparatus for vehicle door of vehicle, described right back door contact interrupter signal acquisition circuit is connected to the right back opening and closing apparatus for vehicle door of vehicle, described acquisition radar (7) comprises at least one, be installed on left side and/or the right side of rear view of vehicle.
6. the opening door of vehicle anti-collision warning system according to any one of claim 1-5, it is characterized in that, described visual alarm device is LED(2), described sound sensation warning device is buzzer phone (3), described acquisition radar (7) is Doppler's millimeter wave radar, also include power supply (7), described power supply (9) is connected to control setup (1), LED(2) and buzzer phone (3).
7. the opening door of vehicle anti-collision warning system according to any one of claim 2-6, it is characterized in that, described control setup also includes vehicle speed signal Acquisition Circuit (12), described vehicle speed signal Acquisition Circuit (12) is connected to described MCU(11) and the car speed sensor (6) of vehicle, described MCU(11) speed information that senses based on car speed sensor (6) determines when vehicle is in halted state, performs the operation of described anti-collision alarm.
8. the opening door of vehicle anti-collision warning system according to any one of claim 2-7, it is characterized in that, described MCU(11) in be provided with delays time to control function, when car key under vehicle stop state pushes OFF shelves or after being unplugged, described MCU start-up study controlling functions, in latency period, perform the operation of above-mentioned anti-collision alarm, described MCU automatic cut-off power after exceeding latency period is also closed.
9., based on the opening door of vehicle anti-collision alarm method that the opening door of vehicle anti-collision warning system described in any one of claim 1-8 carries out, it is characterized in that, comprise the following steps:
By acquisition radar (7), step one, control setup (1) judge that whether rear view of vehicle moving target enters in collision-proof alarm region near vehicle body, then control setup does not process if not, if then perform step 2;
By car door door lock master control device (8), step 2, control setup (1) judge now whether car door door lock is in permission open mode, and then control setup does not process if not, if then perform step 3;
Step 3, control setup (1) control visual alarm device and report to the police, and judge now whether car door is in open mode by opening and closing apparatus for vehicle door simultaneously, and then control setup keeps present situation if not, if then perform step 4;
Step 4, control setup (1) control sound sensation warning device simultaneously and report to the police.
10. opening door of vehicle anti-collision alarm method according to claim 9, it is characterized in that, wherein also comprise before step one: by car speed sensor (6), control unit (1) judges whether vehicle is in halted state, and then control unit does not process if not, if then perform above-mentioned steps one; Wherein also to comprise after step 4: the judgement of control unit repeated execution of steps one to step 4, and when car key under vehicle stop state pushes OFF shelves or after being unplugged, automatic cut-off power after control unit delay predetermined time section shutdown system.
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| CN106254426A (en) * | 2016-07-20 | 2016-12-21 | 杭州网易云音乐科技有限公司 | A kind of method and apparatus being carried out by terminal blowing a whistle |
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| WO2021068143A1 (en) * | 2019-10-09 | 2021-04-15 | 周兆楷 | Collision avoidance system for avoiding vehicle from colliding with vehicle door |
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| CN111532235A (en) * | 2020-05-14 | 2020-08-14 | 浙江科技学院 | System for judging whether car door can be safely opened or not based on sonar detection and judging method thereof |
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| CN113547980B (en) * | 2021-07-27 | 2023-09-05 | 浙江智马达智能科技有限公司 | Automobile atmosphere lamp control system and method for door opening warning |
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