CN110341623A - Vehicle door anti-collision early warning system and early warning method - Google Patents
Vehicle door anti-collision early warning system and early warning method Download PDFInfo
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- CN110341623A CN110341623A CN201910673880.1A CN201910673880A CN110341623A CN 110341623 A CN110341623 A CN 110341623A CN 201910673880 A CN201910673880 A CN 201910673880A CN 110341623 A CN110341623 A CN 110341623A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims description 62
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- 239000000126 substance Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 3
- 229910052573 porcelain Inorganic materials 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
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- 239000003550 marker Substances 0.000 description 2
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- 206010039203 Road traffic accident Diseases 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/30—Detection related to theft or to other events relevant to anti-theft systems
- B60R25/31—Detection related to theft or to other events relevant to anti-theft systems of human presence inside or outside the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Radar Systems Or Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a vehicle door anti-collision early warning system and a vehicle door anti-collision early warning method. According to the invention, the infrared sensor is combined with the low-cost continuous millimeter wave Doppler radar to detect the living object approaching from the rear in real time, so that the object approaching can be accurately detected, the influence of the information of the living object collected by the radar and the information of the static object collected by the infrared sensor on the detection result is avoided, the accuracy of object detection is improved, and the accuracy and effectiveness of vehicle door anti-collision early warning are improved. In addition, door collision avoidance system still is provided with the image acquisition device who is used for gathering the object influence, can avoid maliciously bumping porcelain scheduling problem according to gathering the image, has improved the security of opening the door.
Description
Technical field
The present invention relates to technical field of vehicle safety more particularly to a kind of car door anti-collision early warning system and method for early warning.
Background technique
With the sharp increase of car ownership, vehicle safety is increasingly by the attention of the majority of consumers.Major automobile vendor
Also the concept of automotive safety service is gradually derived, when in automotive safety with opening door of vehicle, the close bicycle of car door and rear,
The accident that the other automobiles of motorcycle collide is especially prominent, annual therefore the number of disability to be caused to account for the total disabled person of traffic accident
Several 11%.In addition, a part of criminal is real using the bad habit that driver and passenger's door opening does not splash rear road conditions
Blackmail is applied, unlawful interests is obtained, causes unnecessary economic loss to car owner.
Currently, existing security risk when in order to avoid above-mentioned car door opening, generallys use vision camera capturing technology,
The core of vision camera capturing technology concentrates on image processing algorithm, and hardware is easily achieved, and is advantageously integrated on automobile.
But vision camera capturing technology is limited by being affected for the weather environments such as light, misty rain snow frost, recognition success rate is not
It is high；Especially in the case where night and bad other light, there are entirely ineffective risks, car door can not be effectively prevent to collide
The problem of.
Summary of the invention
In view of the problems existing in the prior art, the present invention is intended to provide a kind of car door anti-collision early warning system and the pre- police in fact
Method, to solve the problem of that existing anti-collision alarm system is easy to be influenced car door can not be effectively prevent to collide by adverse circumstances.
The technical scheme adopted by the invention is as follows:
A kind of car door anti-collision early warning system comprising: radar module, infrared inductor, vehicle door lock device and center
Processor, the radar module, infrared inductor and vehicle door lock device are connected with the central processing unit；
The radar module is believed for detecting the moving object information in default search coverage, and by the moving object
Breath is sent to central processing unit；
The infrared inductor is sent to for detecting the object information of default search coverage, and by the object information
Central processing unit；
The central processing unit, for determining default detecting area according to the moving object information and the object information
It whether there is effective object in domain, and send locking signal to vehicle door lock device when there are effective object；
The vehicle door lock device, for controlling car door locking according to the locking signal.
The car door anti-collision early warning system, further includes power module, the power module and the central processing unit phase
Connection, for central processing unit power supply, wherein the power module includes at least automobile power supply system and rechargeable battery
One of.
The car door anti-collision early warning system, wherein the radar module and infrared inductor are removably connected to automobile
Rearview mirror on, and the default search coverage of the radar module is identical as the default search coverage of the infrared inductor.
The car door anti-collision early warning system, further includes prior-warning device, the prior-warning device and the central processing unit phase
Connection；
The prior-warning device sends pre-warning signal for receiving central processing unit, and according to the pre-warning signal generation sound
Light early warning.
The car door anti-collision early warning system, further includes external equipment, the external equipment and the central processing unit phase
Connection；
The external equipment, for sending out code to central processing unit, so that central processing unit is according to the pass
It closes instruction and closes infrared inductor and radar module.
The car door anti-collision early warning system further includes image collecting device, described image acquisition device and the center
Processor is connected；
Described image acquisition device is sent for acquiring the video image of default search coverage, and by the video image
To central processing unit, in order to according to the video image determine car door whether collision object.
A kind of car door anti-collision method for early warning, applied to as above any car door anti-collision early warning system, the method packet
It includes:
The moving object information of default search coverage is detected by radar module, and is detected and preset by infrared inductor
The object information of search coverage；
Judged to whether there is effective substance in default search coverage according to the moving object information and the object information
Body；
When there are effective object, locking signal is sent to vehicle door lock device, to lock by the vehicle door lock device
Only car door.
The car door anti-collision method for early warning, the method also includes:
When not there is no effective object, door lock unlocking signal is sent to vehicle door lock device, to pass through vehicle door lock device
Solution locks door.
The car door anti-collision method for early warning, wherein described to be sentenced according to the moving object information and the object information
It is specifically included in disconnected default search coverage with the presence or absence of effective object:
First number of moving object information is detected in the preset monitored time and is detected second of object information
Number；
Calculate first number and second several total degree, and by the total degree and preset times threshold value into
Row compares；
When the total degree is more than or equal to the preset times threshold value, determine to exist in the default search coverage effective
Object.
The car door anti-collision method for early warning, wherein the method also includes:
At the end of preset time, first number and second number are reset.
The utility model has the advantages that the present invention provides a kind of car door anti-collision early warning system and method for early warning, the early warning system passes through
Radar acquires the object information of the moving object of search coverage, by having life in infrared inductor synchronous acquisition search coverage
The object information of body, detect in search coverage exist be kept in motion when having inanimate object, automatic locking car door.This
The continuous millimeter wave Doppler radar of low cost, the lived object close to rear are combined in invention using infrared sensor
It is measured in real time, can accurately detect effectively close to object, the lifeless object information for avoiding radar from acquiring and infrared inductor
Influence of the stationary object information of acquisition to testing result, improves the accuracy of object detection, to improve car door anti-collision
The accuracy and validity of early warning.Meanwhile the present invention is acquired in default search coverage using continuous millimeter wave Doppler radar
Moving object information, continuous millimeter wave Doppler thunder are not influenced by high adverse circumstances (for example, high temperature or sleet etc.), thus
So that early warning system can also accurately collect effective object information in the presence of a harsh environment, the safety of early warning system is improved.
In addition, the car door anti-collision system is additionally provided with the image collecting device for acquiring object contributions, it can according to image is collected
The problems such as to avoid malice blackmail, improve the safety of opening car door.
Detailed description of the invention
Fig. 1 is the structure principle chart of car door anti-collision early warning system provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of one application scenarios of car door anti-collision early warning system provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another application scenarios of car door anti-collision early warning system provided in an embodiment of the present invention；
Fig. 4 is one embodiment schematic diagram of automobile rearview mirror provided in an embodiment of the present invention；
Fig. 5 is one embodiment schematic diagram of radar module in car door anti-collision early warning system provided in an embodiment of the present invention；
Fig. 6 is the flow chart of car door anti-collision method for early warning provided in an embodiment of the present invention；
Fig. 7 is the flow diagram of car door anti-collision method for early warning provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
It should be noted that be expressed " being fixed on " another element when element, it can directly on the other element,
Or there may be one or more elements placed in the middle therebetween.When an element is expressed " connection " another element, it can be with
It is directly to another element or there may be one or more elements placed in the middle therebetween.Used in this specification
The orientation or position of the instructions such as term "vertical", "horizontal", "left" and "right", "upper", "lower", "inner", "outside", " bottom "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as instruction or
Imply relative importance.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes
Any and all combinations of one or more related listed items.In addition, invention described below difference is implemented
Technical characteristic involved in mode can be combined with each other as long as they do not conflict with each other.
The car door anti-collision method for early warning and its anti-collision early warning system provided in the present embodiment can be applied to any type
Automobile or similar mobile carrier on, when for avoiding the car door opening of automobile with the lived moving object that comes from behind
Body collides.
Based on the thinking acquired based on infrared acquisition and continuous millimeter wave Doppler radar that the embodiment of the present invention discloses, originally
Field technical staff is easy after technical solution is simply converted, adjusts or combined, applied to a variety of different automobiles
Middle use.
A kind of car door anti-collision early warning system is present embodiments provided, as shown in Figs 1-4, the car door anti-collision early warning system packet
Include central processing unit 110, infrared inductor 122, radar module 121 and vehicle door lock device 150；The infrared inductor
122, radar module 121 and vehicle door lock device 150 are connected with the central processing unit 110, and with the centre
Reason device 110 is communicated.The infrared sensor 122 is used to detect the object information of default search coverage, and will test
Object information is sent to central processing unit 110, and the radar module 121 is used to detect the moving object letter of default search coverage
Breath, and the moving object information that will test is sent to central processing unit 110.The central processing unit 110 receives described infrared
The moving object information that the object information and radar module 121 that sensor 122 is sent are sent, and believed according to the object received
Breath and moving object information judge in default search coverage T with the presence or absence of effective object, and hair when there are effective object
Send locking signal to vehicle door lock device 150.The vehicle door lock device 150 receives the car door lock stop signal, and according to institute
Car door lock stop signal locking car door is stated, to prevent car door to be turned on.The present embodiment combines the company of low cost using infrared sensor
Continuous millimeter wave Doppler radar, the lived object close to rear are measured in real time, and can accurately detect effective proximity object
Shadow of the stationary object information of body, the lifeless object information for avoiding radar from acquiring and infrared inductor acquisition to testing result
It rings, the accuracy of object detection is improved, to improve the accuracy and validity of car door anti-collision early warning.In the present embodiment
In, the detection of the lived object close to rear is calculated based on movement velocity and perceived distance, i.e., detection is default visits
The object information for having inanimate object moved in region with certain speed is surveyed, and generates locking letter according to object information is detected
Breath.
Further, in an implementation of the present embodiment, the infrared inductor 122 and the radar module 121
It is formed and is arranged with mould group, the default spy corresponding with the radar module of the corresponding default search coverage of the infrared inductor 122
Survey region is consistent, so that the infrared inductor 122 and radar module 121 acquire the object information in same area, in this way
The accuracy of object detection can be improved.In the present embodiment, since the two sides of automobile are provided with a pair of of rearview mirror 120.Backsight
Mirror 120, which extends outwardly, a certain distance and forms angle, and the road conditions at automobile two sides rear can be observed for driver, thus
The infrared inductor 122 and radar module 121 are set on a rearview mirror.The default search coverage T is fan section
Domain, the rearview mirror that infrared inductor 122 and radar module 121 is arranged is the vertex of fan-shaped region.In addition, the car body
It can be each equipped with infrared inductor 122 and radar module 121 on two rearview mirrors 120 on 100, it in this way can be to two sides
Car door carries out early warning simultaneously.Certainly, in practical applications, the detection mould group that the infrared inductor and radar module are constituted can
Be placed in left and right car door and with car door it is related elsewhere.
Further, in an implementation of the present embodiment, the radar module 121 is preferably that how general continuous millimeter wave is
Radar is strangled, since continuous millimeter wave Doppler thunder is not influenced by high adverse circumstances (for example, high temperature or sleet etc.), to make
Effective object information can also accurately be collected in the presence of a harsh environment by obtaining early warning system, improve the safety of early warning system；Together
Shi Lianxu millimeter wave Doppler radar can detecte the object information of the moving object of default search coverage, avoid stationary object
Influence to early warning system improves the validity of object information.The cost of the continuous millimeter wave Doppler radar is low, can be with
Reduce the cost of the early warning system at.
In the present embodiment, as shown in figure 5, the Doppler radar dielectric resonator generate millimeter-wave signal, one
Divide through transmitting antenna 21 to external radiation, another part injects frequency mixer 22 and is used as local oscillation signal, the frequency mark of local oscillation signal
It is denoted as Ftx.When the millimeter-wave signal that transmitting antenna 21 is radiate encounters barrier, reflection signal can be generated, reflects signal
Frequency marker be Frx, the reflection signal be received antenna 23 reception and be sent into frequency mixer 22.Frequency mixer 22 is at intermediate frequency end
Intermediate-freuqncy signal Sif is generated, the frequency marker of intermediate-freuqncy signal is Fif, wherein Fif=| Frx-Ftx |.The intermediate-freuqncy signal is used for
The motion information for determining barrier, as Fif=0, barrier is static, and the motion information detected is static；As Fif ≠ 0,
Barrier is kept in motion, and the motion information detected is movement.Further, since Doppler effect, in Fif ≠ 0, Fif
Frequency may be between 10Hz~200Hz, intermediate-freuqncy signal is carried out by amplifier 24 and threshold detector 25 at this time
After amplification and shaping, pulse (Transistor-Transistor Logic level) signal is exported to central processing unit 110, so that central processing unit 110 is available
The object of which movement information detected to radar module.
Further, in an implementation of the present embodiment, the infrared inductor 122 is filtered saturating using band Fresnel
The infrared ray of the human body infrared detector of mirror, 10um that the human body infrared detector is issued by detection human body or so carries out
Work.The infrared ray of the wavelength 10um that human body issues or so focuses on infrared induction probe after enhancing by Fresnel Lenses
On.Infrared induction probe receives when human infrared radiation temperature changes and can lose charge balance, discharge outward charge with
Generate trigger signal.The present embodiment can detecte the object for having inanimate object in default search coverage by the infrared sensor
Body information, in this way can influence to avoid lifeless object to early warning system, improve the accuracy of early warning system early warning.
Further, in an implementation of the present embodiment, the vehicle door lock device 150 is multiple, the car door
The quantity of locking device 150 is identical as the quantity of car door that car body 100 is arranged, and is provided at each car door and vehicle door lock
Device 150.The vehicle door lock device 150 may be mounted at the opening lock catch for opening car door, for according to central processing
The locking signal of device locks car door to prevent passenger from pushing car door open.In the present embodiment, the central processing unit 110 with it is described
Communication connection is can establish between vehicle door lock device 150, central processing unit 110 is sent to the vehicle door lock device 150
Locking signal, the vehicle door lock device 150 can send the feedback letter for carrying locking result to the central processing unit 110
Breath.Wherein, can be connected by bluetooth or WiFi communication between the central processing unit 110 and the vehicle door lock device 150
It connects.
Further, in an implementation of the present embodiment, the early warning system can also include power module 130,
The power module 130 is connected with the central processing unit 110, for the central processing unit 110 power supply.Wherein, described
Power module 130 may include one or more of the power supply system of automotive interior and the rechargeable battery of peripheral hardware.In this reality
It applies in example, the battery module includes the power supply system and rechargeable battery of automotive interior, in the rechargeable battery and the automobile
The power supply system in portion is connected, and can be rechargeable battery charging by the power supply system of the automotive interior, work as vapour in this way
When vehicle starting operation, automotive interior power supply system is that the rechargeable battery carries out charging up to rechargeable battery to the electricity completely filled.
Also that is, enabling the charging of automotive interior power supply system until rechargeable battery is full of.If rechargeable battery occur can not be the preventing car door
The power supply for hitting early warning system in special circumstances, directly can also use automotive interior power supply system for the car door anti-collision early warning
System power supply.Certainly, in practical applications, the rechargeable battery can be solar battery.
Further, in an implementation of the present embodiment, the early warning system can also include warning device 140,
The warning device 140 is connected with the central processing unit 110, and the alarm signal sent according to the central processing unit 110
Number generate warning note.In the present embodiment, the warning device 140 is preferably combined aural and visual alarm, and the combined aural and visual alarm exists
When receiving the alarm signal of central processing unit transmission, sound-light alarm is generated according to the alarm signal, to remind user's car door
There is effective object at rear.In this way the locking car door the case where, user can also be reminded, further increase the safety of early warning
Property.
Further, in an implementation of the present embodiment, in order to improve the comprehensive of early warning, the early warning system is also
It may include external equipment, the external equipment is connected with the central processing unit 110, and the external equipment is to the center
Processor 110 sends out code, central processing unit 110 according to the out code close the infrared inductor 122 and
Radar module 121, preventing automobile in the places residence time such as garage, excessive electricity consumption causes electricity consumption to waste too long.In the present embodiment
In, the external equipment can be for suitable for the intelligent terminal interacted with user, such as smart phone, personal electricity
Brain, tablet computer or wearable smart machine etc..In addition, the external equipment can be also used for control rearview mirror angle of oscillation
Degree, for example, car owner can close rearview mirror by external equipment after vehicle has stopped.In the present embodiment, the outside is set
The standby application program that can be mounted with for controlling the early warning system, the application program make what user can be convenient to pass through
External equipment is interacted with central processing unit 110, by the state of the available vehicle door lock device 150 of the application program, is filled
Angle locating for the battery status of battery, the working condition of radar module 121 and infrared inductor 122 and rearview mirror
Deng；Also it can receive central processing unit 110 to send warning information and the warning information is prompted to user；It can also be to center
Processor 110 send control instruction so that central processing unit 110 adjusted according to the control instruction default search coverage,
State of configuration parameter and vehicle door lock device of radar module 121 and infrared inductor 122 etc..
Further, in an implementation of the present embodiment, the early warning system can also include image collecting device
160, described image acquisition device 160 may also set up in rearview mirror, for acquiring the video data in default search coverage, and
The video data is sent to central processing unit 110, to store the video data by the central processing unit 110.This
Sample can get the corresponding video counts of the car door collision accident when sending car door collision accident by central processing unit
According to, it may determine that whether car door contacts with object by the video data, on the one hand can implement blackmail to avoid criminal,
The unnecessary economic loss for avoiding car owner, on the other hand can detecte early warning system detection accuracy, according to video counts
According to determine that object contact with car door and when the non-locking car door of early warning system, it is possible to determine that early warning system sends failure or detects mistake
Spirit.
Based on above-mentioned car door anti-collision early warning system, the present invention also provides a kind of car door anti-collision method for early warning, such as Fig. 6 and 7
Shown, the method for early warning includes:
S10, the moving object information that default search coverage is detected by radar module, and detected by infrared inductor
The object information of default search coverage.
Specifically, the radar module is continuous millimeter wave Doppler radar, and the moving object information presets detecting area
The object information of moving object in domain.The detection of the moving object information can be with are as follows: continuous millimeter wave Doppler radar passes through
Directional array antenna radiated electromagnetic wave Ftx into default search coverage, then reflection electromagnetic wave Frx is received by receiving antenna.?
In Doppler effect, when having stationary object in default search coverage, reflection electromagnetic wave Frx is identical with transmitting electromagnetic wave Ftx, visits
It surveys device and does not export trigger signal, when there is moving object close, there are differences by reflection electromagnetic wave Frx and transmitting electromagnetic wave Ftx
Fif, radar detedtor exports effective trigger signal to central processing unit, so that central processing unit gets moving object at this time
Information.In addition, the infrared sensor works asynchronously with the Doppler radar, default detecting area is detected by infrared sensor
There is an object information of inanimate object in domain, and the detection process of the object information for having inanimate object can be with are as follows: passes through infrared sensing
Device detects in default search coverage has the object of infrared ray to determine with the presence or absence of transmitting, this is because the motive vehicle meeting that high speed is close
To the infrared ray of external radiation 10um, and fall leaves, raindrop and the case where non-artificial driving do not have then, therefore auxiliary by infrared sensor
Raising is helped to detect effective success rate, it is defeated when the object that infrared sensor is detected with infrared radiation is present in search coverage
Trigger signal is to central processing unit out, so that central processing unit receives the object information of inanimate object.
S20, judged in default search coverage according to the moving object information and the object information with the presence or absence of having
Imitate object.
Specifically, what the effective object referred to being kept in motion has inanimate object, wherein the effective object is
There is life according to what the object information (moving object information) of the moving object of radar module detection and infrared inductor detected
The object information (object information) of object determines, in this way by the object information of moving object and the object information knot for having inanimate object
It closes, the accuracy of mobile object judgement can be improved, to improve the accuracy and validity of early warning.In the present embodiment, institute
It states object information and moving object information is individually sent to central processing unit, central processing unit can be according to receiving
Moving object information and the combination of object information judge to whether there is effective object in default search coverage.
Illustratively, described to judge whether deposit in default investigative range according to the moving object information and object information
It is specifically included in effective object:
S21, first number that moving object information is detected in the preset monitored time and detect object information
Two numbers；
S22, first number and second several total degree are calculated, and by the total degree and preset times threshold
Value is compared；
S23, when the total degree is more than or equal to the preset times threshold value, determine exist in the default investigative range
Effective object；
S24, when the total degree is less than the preset times threshold value, determine in the default investigative range not there are
Imitate object.
According to various regions, the preset time be it is pre-set, for example, 100ms.I.e. it is inscribed to obtain 100ms for central processing unit
First number for receiving moving object information and second number for receiving object information, and calculate first number and second number
Total degree.For example, first number is 2, second number is 3, then total degree is 5.In the present embodiment, the central processing
Device can determine the number for receiving object information by detecting the level jump number of infrared inductor, that is to say, that when
Central processing unit detects the level jump (for example, jumping to low level from high level) of infrared inductor, then remembers infrared jump
Record plus one, that is, the number for receiving object information adds one.In addition, recording radar while recording infrared jump transition times
Whether the level of module jumps, and when the level of radar module jumps, microwave jump record plus one receives
The number of moving object information adds one, and so on until preset time terminates, obtain the number of infrared jump record to obtain
First number obtains the number of microwave jump record to obtain second number.
Further, after getting first number and second number, total degree is calculated according to first number and second number,
And be compared the total degree being calculated with preset times threshold value, to judge whether to need to generate warning information.In this reality
It applies in example, the preset times threshold value is to preset, for example, 3 times.In addition, being carried out by total degree and preset times threshold value
After comparing, infrared transition times and microwave transition times are reset simultaneously, to open the detection of next preset time.
S30, when there are effective object, to vehicle door lock device send locking signal, to be filled by the vehicle door lock
Set locking car door.
Specifically, when there are effective object, central processing unit sends locking signal to vehicle door lock device, to pass through
State vehicle door lock device locking car door.Certainly, in practical applications, effective existing in order to which the use to user is brought convenience
When object, central processing unit monitors the instruction that car door is turned in real time, when receiving the instruction that car door is turned on, passes through CAN
Interface Controller vehicle door lock device locking car door.In addition, can directly be sent to user pre- when detecting the presence of effective object
Alert information, to prompt user rear, there are mobile objects to approach, it is noted that opening car door, and while sending warning information
The instruction that car door is turned on is monitored, when receiving the instruction that car door is turned on, vehicle door lock device lock is controlled by CAN interface
Only car door, and early warning is carried out again.
Further, in an implementation of embodiment, the method for early warning further include:
When not there is no effective object, door lock unlocking signal is sent to vehicle door lock device, to pass through vehicle door lock device
Solution locks door.
Specifically, when not there is no effective object, it can detecte the state of vehicle door lock device, if at vehicle door lock device
In lockup state, then vehicle door lock device sends door lock unlocking signal, in this way can be with to be locked door by vehicle door lock device solution
It avoids user from failing to open car door, is brought convenience to the use of user.Certainly, lockup state is not in vehicle door lock device
When, unlocking information can not be sent to vehicle door lock device, or the unlocking information is abandoned by vehicle door lock device.At this
In embodiment, preferably unlocking information is not sent to the vehicle door lock device, central processing unit and car door can be reduced in this way
Communication between locking device reduces the energy consumption of early warning.
It, can according to the technique and scheme of the present invention and this hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (10)
1. a kind of car door anti-collision early warning system characterized by comprising radar module, infrared inductor, vehicle door lock device with
And central processing unit, the radar module, infrared inductor and vehicle door lock device are connected with the central processing unit；
The radar module is sent out for detecting the moving object information in default search coverage, and by the moving object information
It send to central processing unit；
The infrared inductor is sent to center for detecting the object information of default search coverage, and by the object information
Processor；
The central processing unit, for being determined in default search coverage according to the moving object information and the object information
Locking signal is sent to vehicle door lock device with the presence or absence of effective object, and when there are effective object；
The vehicle door lock device, for controlling car door locking according to the locking signal.
2. car door anti-collision early warning system according to claim 1, which is characterized in that it further includes power module, the power supply
Module is connected with the central processing unit, for central processing unit power supply, wherein the power module includes at least vapour
One of vehicle power supply system and rechargeable battery.
3. car door anti-collision early warning system according to claim 1, which is characterized in that the radar module and infrared inductor are equal
It is removably connected on the rearview mirror of automobile, and the default search coverage of the radar module and the infrared inductor is pre-
If search coverage is identical.
4. car door anti-collision early warning system according to claim 1, which is characterized in that it further includes prior-warning device, the early warning
Device is connected with the central processing unit；
The prior-warning device sends pre-warning signal for receiving central processing unit, and pre- according to pre-warning signal generation acousto-optic
It is alert.
5. car door anti-collision early warning system according to claim 1, which is characterized in that it further includes external equipment, the outside
Equipment is connected with the central processing unit；
The external equipment, for sending out code to central processing unit, so that central processing unit refers to according to the closing
It enables and closes infrared inductor and radar module.
6. car door anti-collision early warning system according to claim 1, which is characterized in that it further includes image collecting device, described
Image collecting device is connected with the central processing unit；
Described image acquisition device for acquiring the video image of default search coverage, and the video image is sent to
Central processor, in order to according to the video image determine car door whether collision object.
7. a kind of car door anti-collision method for early warning, which is characterized in that pre- applied to the car door anti-collision as described in claim 1-6 is any
Alert system, which comprises
The moving object information of default search coverage is detected by radar module, and default detection is detected by infrared inductor
The object information in region；
Judged to whether there is effective object in default search coverage according to the moving object information and the object information；
When there are effective object, locking signal is sent to vehicle door lock device, to pass through the vehicle door lock device locking vehicle
Door.
8. car door anti-collision method for early warning according to claim 7, which is characterized in that the method also includes:
When not there is no effective object, door lock unlocking signal is sent to vehicle door lock device, to unlock by vehicle door lock device
Car door.
9. car door anti-collision method for early warning according to claim 7 or 8, which is characterized in that described according to the moving object
Information and the object information judge to specifically include in default search coverage with the presence or absence of effective object:
First number of moving object information is detected in the preset monitored time and detects second number of object information；
First number and second several total degree are calculated, and the total degree and preset times threshold value are compared
Compared with；
When the total degree is more than or equal to the preset times threshold value, determine that there are effective substances in the default search coverage
Body.
10. car door anti-collision method for early warning according to claim 9, which is characterized in that the method also includes:
At the end of preset time, first number and second number are reset.
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