CN108515905A - A kind of automobile door opening bump-proof system based on millimetre-wave radar - Google Patents
A kind of automobile door opening bump-proof system based on millimetre-wave radar Download PDFInfo
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- CN108515905A CN108515905A CN201810148228.3A CN201810148228A CN108515905A CN 108515905 A CN108515905 A CN 108515905A CN 201810148228 A CN201810148228 A CN 201810148228A CN 108515905 A CN108515905 A CN 108515905A
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- millimetre
- wave radar
- control module
- door opening
- system based
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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
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/525—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
A kind of automobile door opening bump-proof system based on millimetre-wave radar, including control module, A/D conversion modules, car door trigger switch, lock control switch and millimetre-wave radar, control module is sent a signal to by touching car door trigger switch, control module control millimetre-wave radar starts to detect peripheral motor object information, and pass to control module after converting the moving object information of millimetre-wave radar detection by A/D conversion modules, control module calculates the time T1 at moving object arrival car door according to moving object information, and T1 and level threshold value T0 are compared to realize control.It is close that the present invention changes supersonic technique in traditional technology, and the problem of by the faces CCD battle array camera comparison somewhat expensive, while camera is overcome the problem of foggy weather can not use, use millimetre-wave radar, not only wide range of measurement, but also will not be influenced by weather.
Description
Technical field
The present invention relates to a kind of anticollision device, collision-prevention devices, more particularly, to a kind of automobile door opening anticollision system based on millimetre-wave radar
System.
Background technology
The ownership of today's society automobile is increasing, inevitably leads to the traffic congestion in city.In addition to normal row
Except sailing, the park problem of automobile also highlights.At the same time, electric bicycle, trail bike are also quickly grown, different
The right of way intensification of contradictions of type vehicle, the safety accident quantity between motor vehicle and non-motor vehicle are also in rising trend.Motor vehicle
When parking and opening car door, car door and rear are sailed the accident that the bicycle, motorcycle, electric bicycle come collides and are sent out repeatedly
It is raw.When effectively reducing parking, on the one hand the traffic accident caused due to car door opening needs driver and passenger to have
Well, the door opening custom of specification；On the other hand, transportation condition is needed to be improved, the stringent pipe to motor vehicle, non-motor vehicle is reinforced
Reason.But the two aspects are all difficult to that good effect can be obtained in a short time.Therefore, a kind of automobile door opening anticollision of research and design system
System, to reduce the traffic accident that parking enabling and bicycle, electric vehicle etc. collide, avoid unnecessary casualties with
Economic loss has important theory significance and is widely applied value.
You Duo companies and institution of higher education research and develop collision-proof device for opening automobile door at present, wherein application No. is
201620242259.1 a kind of entitled " automobile controls enabling anti-collision system " patent document is disclosed, application No. is
201620790004.9 disclose a kind of a kind of entitled " automobile door opening anti-collision early warning system based on bluetooth " patent document, with
Upper two patents complete the ranging of whole system using ultrasonic range finder, and ultrasonic ranging principle is simple, easy to make, cost
It is relatively low.But as the rangefinder on vehicle, there are two disadvantages：First, the speed of ultrasonic wave is affected by external environment variation,
Ultrasonic velocity is different under different temperatures；Second is that square directly proportional decaying of ultrasonic energy and distance, therefore distance is remoter, reflection
The ultrasonic wave returned is fewer, and sensitivity declines quickly, so that the mode of ultrasonic ranging is only applicable to relatively short distance.State at present
Inside and outside ultrasonic wave ideal ranging is, it is normally only used in Backing-up anticollision system for automobile.Application No. is
201510503307.8 disclose a kind of a kind of entitled " automobile door opening bump-proof system " patent document, which uses the faces CCD
Battle array camera carries out binocular identifying system ranging, and binocular identification technology range accuracy is high, and figure can be utilized during ranging
The bulk information for including as in realizes that other auxiliary drive function, but it has an images match, and needs
The data of processing are more, and the time used is longer, and price is more expensive.
According to millimetre-wave radar detection range, remote, reliable for operation, measurement performance is influenced smaller by extraneous factors such as weather, can
The features such as to obtain distance, relative velocity, present invention selection use millimetre-wave radar, design one to detect barrier entrance
The automobile door opening bump-proof system that car door is locked at once when risk distance is eliminated since improper enabling causes same pedestrian or cyclist's phase
The security risk hit.
Invention content
The purpose of the present invention is high to solve existing anti-collision system price, the small problem of detection range provides a kind of base
In the automobile door opening bump-proof system of millimetre-wave radar.
The deficiency of the present invention to solve above-mentioned technical problem, used technical solution are：
A kind of automobile door opening bump-proof system based on millimetre-wave radar, including the triggering of control module, A/D conversion modules, car door are opened
Pass, lock control switch and millimetre-wave radar send a signal to control module, control module control by touching car door trigger switch
Millimetre-wave radar processed starts to detect peripheral motor object information, and the moving object information that millimetre-wave radar detects is passed through A/D
Control module is passed to after conversion module conversion, control module calculates moving object according to moving object information and reaches at car door
Time T1 used, and T1 and level threshold value T0 are compared, level threshold value T0 is encountered equal to the time used in door opening with people
The summation in burst thing reaction time, as T1 ＞ T0, control module issues instructions to lock control switch, and control lock is opened
Car door is set normally to open；As T1≤T0, control module issues instructions to lock control switch, and control lock is locked to make vehicle
Door can not be opened.
There are two the millimetre-wave radar settings is separately mounted on the both ends of automobile tail bumper, two millimeter waves
The working frequency of radar is 77GHz, and effective working distance is 200m.
The moving object information is moving object at a distance from millimetre-wave radar and the velocity information of moving object.
The lock control switch is mounted on four car doors with car body hinged place to limit the folding of car door, car door triggering
Switch, which is mounted on inside four car doors, to be opened on handle and is connect with control module.
The level threshold value T0 is 5-20s, and the reaction time for the thing that happens suddenly is to be determined according to old person's development to protect
Demonstrate,prove safe enough.
The control module is the ARM chips of LC67F500.
It is also associated with alarm module in the control module, as T1≤T0, control module issues instructions to lock control
System switch, control lock is locked to make car door that can not open, while controlling alarm module alarm.
At least one of described sound sensation alarm module or visual alarm module.
The sound sensation alarm module is boom unit, and visual alarm module is indicator light.
There are four the boom unit settings is separately mounted to inside four car doors, and four boom units are all made of independence
Power supply power supply, four boom units improve beep frequencies and volume with moving object and the reduction of millimetre-wave radar distance；
Boom unit can also be connect with whistle system, when the distance that crosses close to vehicle and this vehicle is more than certain threshold value such as distance
When vehicle distance is 2 meters, whistle system starts to blow a whistle, and the indicator light is LED warning lamps, the installation of LED warning lamps and four vehicles
It powers on door and by independent film, LED warning lamps flicker frequency is carried with the reduction of moving object and millimetre-wave radar distance
It is high.
The beneficial effects of the invention are as follows：It is close that the present invention changes supersonic technique in traditional technology, and passes through CCD
The problem of face battle array camera comparison somewhat expensive, while camera is overcome the problem of foggy weather can not use, it uses
Millimetre-wave radar, not only wide range of measurement, but also will not be influenced by weather, while when millimetre-wave radar is by calculating
Between, it by being compared on the time, securely and reliably, is compared by the time, effect ratio passes through image comparison safety.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the signal processing system figure of the present invention.
Specific implementation mode
As shown in the figure, specific implementation mode is as follows：
A kind of automobile door opening bump-proof system based on millimetre-wave radar, including the triggering of control module, A/D conversion modules, car door are opened
It closes, lock control switch and millimetre-wave radar, the control module are used using the ARM chips of LC67F500 as core progress work
Make, after carrying out analog filtering and enhanced processing to the intermediate-freuqncy signal that front end returns, carries out A/D conversions and before FFT transform
Digital filtering is carried out, then executes the related algorithms such as CFAR target detections in frequency domain（Specific is exactly to be examined according to millimetre-wave radar
Moving object is surveyed at a distance from vehicle, detection twice, obtains velocity information, then basis according to range difference and time difference calculating speed
Velocity information and total distance calculate time T1）, according to input informations such as vehicle speed, door lock state and car door opening states
System alarm is carried out, sends a signal to control module by touching car door trigger switch, control module control millimetre-wave radar is opened
After begin detection peripheral motor object information, and the moving object information that millimetre-wave radar is detected is converted by A/D conversion modules
Control module is passed to, control module calculates the time T1 at moving object arrival car door according to moving object information,
And compare T1 and level threshold value T0, when level threshold value T0 is equal to time and people used in door opening and encounters the thing that happens suddenly and react
Between summation, as T1 ＞ T0, control module issue instructions to lock control switch, control lock opening keep car door normal
It opens；As T1≤T0, control module issues instructions to lock control switch, and control lock is locked to make car door that can not open, and disappears
Except the security risk for causing same pedestrian or cyclist's collision due to improper enabling.
There are two the millimetre-wave radar settings is separately mounted on the both ends of automobile tail bumper, two millimeter waves
The working frequency of radar is 77GHz, and effective working distance is 200m.
The moving object information is moving object at a distance from millimetre-wave radar and the velocity information of moving object.
The lock control switch is mounted on four car doors with car body hinged place to limit the folding of car door, car door triggering
Switch, which is mounted on inside four car doors, to be opened on handle and is connect with control module.
The level threshold value T0 is 5-20s, and the reaction time for the thing that happens suddenly is to be determined according to old person's development to protect
Demonstrate,prove safe enough.
It is also associated with alarm module in the control module, as T1≤T0, control module issues instructions to lock control
System switch, control lock is locked to make car door that can not open, while controlling alarm module alarm.
At least one of described sound sensation alarm module or visual alarm module.
The sound sensation alarm module is boom unit, and visual alarm module is indicator light.
There are four the boom unit settings is separately mounted to inside four car doors, and four boom units are all made of independence
Power supply power supply, four boom units improve beep frequencies and volume with moving object and the reduction of millimetre-wave radar distance；
Boom unit can also be connect with whistle system, when the distance that crosses close to vehicle and this vehicle is more than certain threshold value such as distance
When vehicle distance is 2 meters, whistle system starts to blow a whistle, and the indicator light is LED warning lamps, the installation of LED warning lamps and four vehicles
It powers on door and by independent film, LED warning lamps flicker frequency is carried with the reduction of moving object and millimetre-wave radar distance
It is high.
After automobile comes to a complete stop, car door trigger switch starts when passenger will open car door, and millimetre-wave radar sensor is opened
Whether beginning work, detection rear have moving object, detect the speed and distance of moving object, while by signal through A/D moduluss of conversion
Block is sent to controller, calculates the time used when moving object crosses with this vehicle, and the time of calculating is less than the safety of setting
When threshold value, lock control switch starts, and locks car door, reminds passenger enabling to note that visual alarm by boom unit
Module bright light warns；If distance is more than safe distance, system is not processed.The configuration of the present invention is simple, it is easy to use, it eliminates
It is common in traffic accident that the security risk that same pedestrian or cyclist are bumped against is caused due to improper enabling.
Technical solution and embodiment cited by the present invention and non-limiting, with cited by the present invention technical solution and
Embodiment is equivalent or effect same approach is all in the range of the present invention is protected.
Claims (10)
1. a kind of automobile door opening bump-proof system based on millimetre-wave radar, it is characterised in that：Including control module, A/D moduluss of conversion
Block, car door trigger switch, lock control switch and millimetre-wave radar send a signal to control mould by touching car door trigger switch
Block, control module control millimetre-wave radar start to detect peripheral motor object information, and the moving object that millimetre-wave radar is detected
Body information passes to control module after being converted by A/D conversion modules, and control module calculates movement according to moving object information
Object reaches the time T1 at car door, and T1 and level threshold value T0 are compared, and level threshold value T0 is equal to door opening institute
The summation that the burst thing reaction time is encountered with time and people, as T1 ＞ T0, control module issues instructions to lock control and opens
It closes, control lock opening allows car door normally to open；As T1≤T0, control module issues instructions to lock control switch,
Control lock is locked to make car door that can not open.
2. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 1, it is characterised in that：It is described
Millimetre-wave radar setting there are two being separately mounted on the both ends of automobile tail bumper, the work frequency of two millimetre-wave radars
Rate is 77GHz, and effective working distance is 200m.
3. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 1, it is characterised in that：It is described
Moving object information be moving object at a distance from millimetre-wave radar and the velocity information of moving object.
4. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 1, it is characterised in that：It is described
Lock control switch be mounted on four car doors with car body hinged place to limit the folding of car door, car door trigger switch is mounted on four
It opens inside a car door on handle and is connect with control module.
5. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 1, it is characterised in that：It is described
Level threshold value T0 be 5-20s.
6. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 1, it is characterised in that：It is described
Control module be LC67F500 ARM chips.
7. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 1, it is characterised in that：It is described
Control module on be also associated with alarm module, as T1≤T0, control module issue instructions to lock control switch, control vehicle
Lock is locked to make car door that can not open, while controlling alarm module alarm.
8. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 7, it is characterised in that：It is described
Sound sensation alarm module or at least one of visual alarm module.
9. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 8, it is characterised in that：It is described
Sound sensation alarm module be boom unit, visual alarm module be indicator light.
10. a kind of automobile door opening bump-proof system based on millimetre-wave radar according to claim 9, it is characterised in that：Institute
There are four the boom unit settings stated is separately mounted to inside four car doors, and four boom units are all made of independent current source power supply,
Four boom units improve beep frequencies and volume with moving object and the reduction of millimetre-wave radar distance；The instruction
Lamp be LED warning lamps, LED warning lamps installation power on four car doors and by independent film, LED warning lamps flicker frequency with
The reduction of moving object and millimetre-wave radar distance and improve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148228.3A CN108515905A (en) | 2018-02-13 | 2018-02-13 | A kind of automobile door opening bump-proof system based on millimetre-wave radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810148228.3A CN108515905A (en) | 2018-02-13 | 2018-02-13 | A kind of automobile door opening bump-proof system based on millimetre-wave radar |
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| CN201810148228.3A Pending CN108515905A (en) | 2018-02-13 | 2018-02-13 | A kind of automobile door opening bump-proof system based on millimetre-wave radar |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455139A (en) * | 2018-10-17 | 2019-03-12 | 福建工程学院 | A kind of warning protector based on automobile door opening |
| CN109552164A (en) * | 2018-11-15 | 2019-04-02 | 山东华宇工学院 | A kind of arrangements for automotive doors safety control system |
| CN109613539A (en) * | 2018-12-24 | 2019-04-12 | 智飞(青岛)智能装备科技创新研究院有限公司 | A kind of automobile collision preventing intelligent early-warning system based on millimetre-wave radar |
| CN109910745A (en) * | 2019-04-12 | 2019-06-21 | 河南城建学院 | Based on automotive safety intelligent anticollision early warning system and method under Doppler radar technique |
| CN112248932A (en) * | 2020-10-12 | 2021-01-22 | 合肥工业大学 | Novel automobile door opening grading early warning feedback system based on millimeter wave radar |
| US11847833B2 (en) | 2020-02-12 | 2023-12-19 | Strattec Security Corporation | Broad coverage non-contact obstacle detection |
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| CN106585489A (en) * | 2016-12-12 | 2017-04-26 | 观致汽车有限公司 | Control system and method for safely opening vehicle doors, as well as vehicle |
| US20170292315A1 (en) * | 2014-03-04 | 2017-10-12 | Magna Electronics Inc. | Vehicle alert system utilizing communication system |
| CN107472131A (en) * | 2017-08-18 | 2017-12-15 | 东莞市索恒电子科技有限公司 | Automobile door opening source of early warning, automobile door opening early warning system, automobile door opening method for early warning |
| DE102017003542A1 (en) * | 2017-04-12 | 2018-01-04 | Daimler Ag | Collision detection system for a vehicle |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170292315A1 (en) * | 2014-03-04 | 2017-10-12 | Magna Electronics Inc. | Vehicle alert system utilizing communication system |
| CN106585489A (en) * | 2016-12-12 | 2017-04-26 | 观致汽车有限公司 | Control system and method for safely opening vehicle doors, as well as vehicle |
| DE102017003542A1 (en) * | 2017-04-12 | 2018-01-04 | Daimler Ag | Collision detection system for a vehicle |
| CN107472131A (en) * | 2017-08-18 | 2017-12-15 | 东莞市索恒电子科技有限公司 | Automobile door opening source of early warning, automobile door opening early warning system, automobile door opening method for early warning |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455139A (en) * | 2018-10-17 | 2019-03-12 | 福建工程学院 | A kind of warning protector based on automobile door opening |
| CN109552164A (en) * | 2018-11-15 | 2019-04-02 | 山东华宇工学院 | A kind of arrangements for automotive doors safety control system |
| CN109613539A (en) * | 2018-12-24 | 2019-04-12 | 智飞(青岛)智能装备科技创新研究院有限公司 | A kind of automobile collision preventing intelligent early-warning system based on millimetre-wave radar |
| CN109910745A (en) * | 2019-04-12 | 2019-06-21 | 河南城建学院 | Based on automotive safety intelligent anticollision early warning system and method under Doppler radar technique |
| US11847833B2 (en) | 2020-02-12 | 2023-12-19 | Strattec Security Corporation | Broad coverage non-contact obstacle detection |
| CN112248932A (en) * | 2020-10-12 | 2021-01-22 | 合肥工业大学 | Novel automobile door opening grading early warning feedback system based on millimeter wave radar |
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Application publication date: 20180911 |