CN207488489U - A kind of multifunction anti-collision early warning system based on millimetre-wave radar technology - Google Patents
A kind of multifunction anti-collision early warning system based on millimetre-wave radar technology Download PDFInfo
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- CN207488489U CN207488489U CN201721351955.7U CN201721351955U CN207488489U CN 207488489 U CN207488489 U CN 207488489U CN 201721351955 U CN201721351955 U CN 201721351955U CN 207488489 U CN207488489 U CN 207488489U
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Abstract
The utility model discloses a kind of multifunction anti-collision early warning systems based on millimetre-wave radar technology.Major function includes blind area monitoring, steering and the lane change early warning of vehicle under steam, parking enabling early warning.Early warning system employs a kind of vehicle-mounted auxiliary and drives dedicated high performance millimeter radar, and structure is by DSP circuit plate, shell, voltage controlled oscillator, frequency mixer, amplifier, loop filter, antenna composition.The characteristics of millimetre-wave radar, is the advantages that detection range range is remote, small, and integrated level is high with very high velocity resolution (being less than 1m/s), at low cost.It is detected by millimetre-wave radar technology to the close object in this vehicle rear and both sides, if object enters in the detection zone of millimetre-wave radar, millimetre-wave radar will provide warning function prompting driver, avoid crashing.
Description
Technical field
The utility model belongs to vehicle security drive field, more particularly, to a kind of high performance millimeter wave detections of radar
The driving assistance system of early warning.
Background technology
In today that social economy continues to develop, the various types of vehicles on road increases significantly, the various traffic of the thing followed
Accident is also in cumulative year after year.According to statistics, it is average that road traffic accident together will occur per a few minutes.Difference is brought
The economic loss of degree and personal injury.However many traffic accidents are all since the carelessness of driver causes.Research shows that such as
Fruit has the traffic accident that the warning of 1.5 seconds in advance can reduce 90%.Therefore, vehicle anti-collision early warning system is also currently to grind
The emphasis studied carefully.
Current existing vehicle-mounted millimeter wave radar collision system, there is following some problems：
1. the information of receiving sensor, lacks and the combination of own vehicle information judges, early warning form under different conditions
It is single, it is impossible to realize variable early warning according to different situations, increase so as to cause Driver judgement time, early warning inefficiency；
2. to realize that then usual early warning system structure connects complexity for the processing of multi information, reaction speed is slow, poor practicability,
In urgent emergency case, pre-warning time is long, is unfavorable for traffic safety；
3. millimetre-wave radar circuit structure is complicated, integrated level is low, and volume is larger, is not easy to install and use, and detection range compared with
Small, blind area is larger.
Utility model content
For the disadvantages described above or Improvement requirement of the prior art, it is high based on milli that the utility model provides a kind of integrated level
The multifunction anti-collision early warning system and mounting structure of metre wave radar technology, its object is to eliminate to drive " visual field " blind area, to become
Offer of changing trains assists warning function, and when vehicle parking is opened the door, provide warning function, collide thing when avoiding getting off
Therefore.
To achieve the above object, it according to the one side of the utility model, provides a kind of based on millimetre-wave radar technology
Multifunction anti-collision early warning system and mounting structure, including millimetre-wave radar, OBD (mounted automatic diagnosis) control box, early warning dress
It puts, electric power system, the millimetre-wave radar includes DSP circuit plate (digital signal processing circuit plate), shell, antenna house, provides
CAN interface (controller LAN interface) and TTL interfaces (transistor-crystal logic interfacing).It is opened in vehicle traveling with parking
Men Shi using the close object of millimeter wave detection technology detection two side direction vehicle of vehicle and provides alarm.If there is object into
Enter in millimetre-wave radar detection range, millimetre-wave radar extraction target.Target information is sent to OBD controls by early warning scheme one
Box processed is judged that OBD control box controls warning device；Early warning scheme two, millimetre-wave radar voluntarily judges, passes through after decision
TTL interfaces directly drive warning device, the accident that vehicle is effectively avoided to collide with external object.The anti-collision early warning system is adopted
This vehicle rear view of vehicle and the object of both sides are detected with the 24GHz short distance blind-spot detection radar sensors of vehicle-mounted profession, is had
Early warning accuracy rate is high, and coverage area is big, highly practical, it is at low cost the characteristics of.
Preferably, the millimetre-wave radar of early warning system includes dual-mode antenna, voltage controlled oscillator, frequency mixer, amplifier, loop
Wave filter, signal processing module, CAN interface module.
According to the another aspect of the utility model, a kind of millimetre-wave radar basic structure of early warning system is provided, including
Dual-mode antenna, voltage controlled oscillator, frequency mixer, amplifier, loop filter, signal processing module, CAN interface module.
Preferably, the millimetre-wave radar is plate millimetre-wave radar, and the plate millimetre-wave radar is consolidated by hinged seat
The body after vehicle, the bottom end of the control terminal connecting plate-shaped millimetre-wave radar of the hinged seat.
Preferably, the utility model includes two kinds of technical solutions：The first, millimetre-wave radar by OBD control box with
Warning device connects, and millimetre-wave radar communicates with OBD control box, and OBD control box passes through vehicle OBD interface (mounted automatic diagnosis
System) obtain information of vehicles, the data that OBD control box receives and parsing millimetre-wave radar transmits, OBD control box control alarm dress
It puts；Second, millimetre-wave radar and warning device are directly connected to, and it is straight that millimetre-wave radar will transmit control information by TTL interfaces
It connects driving warning device and provides early warning to occupant.Two schemes warning device is identical, is all buzzer sound early warning
It is formed with indicator light early warning two parts.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Row advantageous effect：
1st, two kinds of early warning are realized by two kinds of connection modes of millimetre-wave radar, one kind is that millimetre-wave radar is controlled by OBD
Box processed drives warning device, and OBD control box is made decisions by information of vehicles and millimetre-wave radar information, can accurately early warning,
Meet intelligent decision of the vehicle in the state of difference, another kind is millimetre-wave radar directly by TTL interface output signals, drive
The dynamic warning device being connect with millimetre-wave radar, without connecting redundant processor, fast response time can meet urgent early warning.
2nd, existing millimetre-wave radar technology lacks with reference to vehicle self information to dangerous judgement, and the of the utility model
In a kind of early warning scheme, while OBD control box receives millimetre-wave radar information, led to using CAN interface and vehicle information center
News, can open the door progress danger judgement for different conditions such as advance, steering, the parking of vehicle, realize Multifunctional pre-warning.
3rd, the installation site of the millimetre-wave radar of the utility model and angle reach detection range：Unilateral 3 meters of left and right, rear
Distance is more than or equal to 30 meters, 100 ° of azimuth, 12 ° of pitch angle.
4th, the utility model millimetre-wave radar is fixed on vehicle body by hinged seat, can adjustment direction as needed, further
Expand early warning range, promote traffic safety.
Description of the drawings
Fig. 1 is the work structuring figure of the first early warning scheme；
Fig. 2 is the work structuring figure of second of early warning scheme；
Fig. 3 is the scheme of installation of millimetre-wave radar；
Fig. 4 is the scheme of installation of early warning system.
In all the appended drawings, identical reference numeral is used for representing identical element or structure, wherein：
The first millimetre-wave radars of 1-, the second millimetre-wave radars of 2-, 3- buzzers, 4- indicator lights.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.In addition, institute in the various embodiments of the present invention described below
The technical characteristic being related to can be combined with each other as long as they do not conflict with each other.
A kind of multifunction anti-collision early warning system based on millimetre-wave radar technology, including electric power system, millimetre-wave radar,
OBD control box and early warning system, the input terminal for just connecting the millimetre-wave radar of the output of the electric power system, the millimeter
The input terminal of the first output terminal connection OBD control box of wave radar, the first output terminal connect the second input terminal of early warning system, institute
State the second input terminal of the output terminal connection early warning system of OBD control box.
The multifunction anti-collision early warning system further includes vehicle information center communication terminal, the vehicle information center communication terminal
The interaction end of OBD control box is connected, the vehicle information center communication terminal can obtain information of vehicles, such as advance, turn to, parking.
The OBD control box has UART interface (universal asynchronous receiving-transmitting transmitter interface), CAN interfaces, the OBD controls
The output terminal of box processed is UART interface, and the interface is not stringent to the timing requirements of communicating pair, so as to can be between distinct device
It is easy to combine, signal of communication is stable and communication speed is fast, and the input terminal of the OBD control box is CAN interface, interaction end
For CAN interface, interface processing complex information strong interference immunity.
The OBD interfaces are 16 trapezoidal needle DLC connectors, and error-preventing designs, if appliance outlet direction is not to
It can not be inserted into, can prevent Effect of Short Circuit vehicle caused by being erroneously inserted from using.
The millimetre-wave radar uses highly integrated design, further includes digital signal processing circuit plate, voltage controlled oscillator, mixes
Frequency device, amplifier, loop filter, shell and antenna.
The digital signal processing circuit plate, voltage controlled oscillator, frequency mixer, amplifier, loop filter, antenna are placed in institute
Among stating shell, the antenna amount is three, can enhance signal, and wide coverage.
The millimetre-wave radar is fixed on body after vehicle, the control terminal connection millimeter wave thunder of the hinged seat by hinged seat
The bottom end reached.
The first to two output terminal of the voltage controlled oscillator connects the first input of the input terminal of antenna, frequency mixer respectively
End, the second input terminal of the output terminal connection frequency mixer of antenna, the input terminal of the output terminal connection amplifier of the frequency mixer, institute
State the input terminal of the output terminal connection digital signal processing circuit plate of amplifier, the output terminal of the digital signal processing circuit plate
Second output terminal as the millimetre-wave radar.
The output terminal of the digital signal processing circuit plate is TTL interfaces, has the advantages that high speed, low-power consumption.
The millimetre-wave radar includes the first millimetre-wave radar and the second millimetre-wave radar, is symmetrically arranged on body after vehicle
At left and right angle, with vehicle forward direction in 60~70 ° in horizontal direction, vertical direction vertical angle is 85~90 °, apart from ground
Highly 500~600mm can reach detection range：Unilateral 3 meters of left and right, rear distance are more than or equal to 30 meters, and 100 ° of azimuth is bowed
12 ° of the elevation angle.
The early warning system includes buzzer or indicator light, and the buzzer is located at vehicle inner wall, and the indicator light includes
Left indicator light, right indicating lamp are respectively arranged on the outside of the left and right back up rearview mirror of vehicle.
Specific embodiment illustrated below in conjunction with the accompanying drawings.
Specific embodiment 1：
As shown in Figure 1, the first early warning scheme：
First millimetre-wave radar and the second millimetre-wave radar obtain the information of barrier, the letter for obtaining barrier
Breath includes the speed, distance, orientation of barrier, OBD control box is transmitted to by CAN interface, if rear obstacle is apart from this vehicle
During more than 5m, by the information acquisition decision information of OBD control box combination information of vehicles and barrier, the buzzer and indicator light
Early warning is obtained according to decision information, specific alarm strategy is as follows：In running car during left and right turn, if rear obstacle
Speed is more than current this vehicle speed or is less than 10 meters with this vehicle distance, then warning device obtains the first early warning；Parking is opened the door,
When i.e. speed is 0, vehicle right and left has barrier to be less than 5 meters close to and with this vehicle distance, then warning device obtains the second early warning and carries
Show；Vehicle is without direction information, in normally travel, as when rear obstacle is close and speed is more than this vehicle speed, obtained third
Early warning.
Specific embodiment 2：
As shown in Fig. 2, second of early warning scheme：
First millimetre-wave radar and the second millimetre-wave radar obtain the information of barrier, the letter for obtaining barrier
Breath includes the speed, distance, orientation of barrier, the first millimetre-wave radar and second if rear obstacle is less than 5m apart from this vehicle
Millimetre-wave radar obtains decision information, the buzzer and indicator light and obtains urgent early warning according to decision information.
As shown in figure 3, the millimetre-wave radar includes the first millimetre-wave radar and the second millimetre-wave radar, it is symmetrically arranged on
The left and right corner of body after vehicle, with vehicle forward direction in 60~70 ° in horizontal direction, vertical direction vertical angle for 85~
90 °, apart from 500~600mm of ground level, being tested through many experiments proves, this installation site can be swept to the greatest extent with angle
Except driving blind area, with reference to the fine adjustment function of hinged-support, it can further expand early warning range.
As shown in figure 4, the early warning system includes buzzer or indicator light, the buzzer is located at vehicle inner wall, described
Indicator light includes left indicator light, right indicating lamp, is respectively arranged on the outside of the left and right back up rearview mirror of vehicle.
The method of work of the utility model is as follows：
S1:OBD system obtains the signal of vehicle launch from vehicle information center, carries out self-test, normally then enters S2, not just
Normal then early warning system obtains early warning；
S2：Electric power system obtain power supply signal, millimetre-wave radar according to the speed of power supply signal acquired disturbance object, distance,
Orientation, and judge whether distance is more than threshold value, it is to open TTL interfaces, closes CAN interface, into S3, otherwise opens CAN and connect
Mouthful, TTL interfaces are closed, OBD control box obtains decision information according to the speed of barrier, distance, orientation and information of vehicles, into
Enter S4；
S3：Millimetre-wave radar obtains decision information, into S4；
S4：The buzzer and indicator light obtain early warning according to decision information, and early warning terminates.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principles of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of multifunction anti-collision early warning system based on millimetre-wave radar technology, which is characterized in that including millimetre-wave radar,
OBD control box and early warning system,
The input terminal of the first output terminal connection OBD control box of the millimetre-wave radar, second output terminal connection early warning system
First input end, the second input terminal of the output terminal connection early warning system of the OBD control box.
2. multifunction anti-collision early warning system as described in claim 1, which is characterized in that further include vehicle information center communication
End, the interaction end of the vehicle information center communication terminal connection OBD control box.
3. multifunction anti-collision early warning system as claimed in claim 2, which is characterized in that the output terminal of the OBD control box is
Universal asynchronous receiving-transmitting transmitter interface, input terminal device lan interfaces in order to control, interaction end also device lan interfaces in order to control.
4. multifunction anti-collision early warning system as claimed in claim 3, which is characterized in that the millimetre-wave radar further includes number
Signal processing circuit board, voltage controlled oscillator, frequency mixer, amplifier, loop filter, shell, antenna,
The digital signal processing circuit plate, voltage controlled oscillator, frequency mixer, amplifier, loop filter be placed in the shell it
In,
The first to two output terminal of the voltage controlled oscillator connects the first input end of the input terminal of antenna, frequency mixer, day respectively
Second input terminal of the output terminal connection frequency mixer of line, the input terminal of the output terminal connection amplifier of the frequency mixer are described to put
The input terminal of the output terminal connection digital signal processing circuit plate of big device, the output terminal conduct of the digital signal processing circuit plate
The second output terminal of the millimetre-wave radar.
5. multifunction anti-collision early warning system as claimed in claim 4, which is characterized in that the digital signal processing circuit plate
Output terminal is transistor-transistor logic interface.
6. multifunction anti-collision early warning system as claimed in claim 5, which is characterized in that the millimetre-wave radar is plate millimeter
Wave radar including the first millimetre-wave radar and the second millimetre-wave radar, is respectively arranged in after vehicle at the left and right angle of body, institute
The angle for stating plate millimetre-wave radar and vehicle forward direction is 60 °~70 °, and the elevation angle with horizontal direction is 85 °~90 °, bottom
End is apart from 500~600mm of ground level.
7. multifunction anti-collision early warning system as claimed in claim 6, which is characterized in that the plate millimetre-wave radar passes through hinge
Joint chair is fixed on body after vehicle, the bottom end of the control terminal connecting plate-shaped millimetre-wave radar of the hinged seat.
8. multifunction anti-collision early warning system as claimed in claim 7, which is characterized in that the early warning system include buzzer or
Indicator light, the buzzer are located at vehicle inner wall, and the indicator light includes left indicator light, right indicating lamp, is respectively arranged in vehicle
On the outside of left and right back up rearview mirror.
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| CN201721351955.7U CN207488489U (en) | 2017-10-19 | 2017-10-19 | A kind of multifunction anti-collision early warning system based on millimetre-wave radar technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721351955.7U CN207488489U (en) | 2017-10-19 | 2017-10-19 | A kind of multifunction anti-collision early warning system based on millimetre-wave radar technology |
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| CN207488489U true CN207488489U (en) | 2018-06-12 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638967A (en) * | 2018-06-15 | 2018-10-12 | 轩辕智驾科技（深圳）有限公司 | A kind of Car warning system and method for early warning based on millimetre-wave radar |
| CN109120890A (en) * | 2018-07-20 | 2019-01-01 | 南京图泰信息产业有限公司 | A kind of vehicle monitoring and early warning system |
| CN109263556A (en) * | 2018-11-14 | 2019-01-25 | 南京吾智智能科技有限公司 | A kind of automobile-used millimeter wave lane change early warning system |
| CN109795412A (en) * | 2019-03-27 | 2019-05-24 | 深圳市元征科技股份有限公司 | A kind of preventing car door collision method for early warning and relevant device |
| CN109870690A (en) * | 2019-03-14 | 2019-06-11 | 上海豫兴电子科技有限公司 | A kind of Radar for vehicle method for early warning, device and vehicle |
| CN112422672A (en) * | 2020-11-12 | 2021-02-26 | 李洁 | Electronic escorting system and escorting method |
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2017
- 2017-10-19 CN CN201721351955.7U patent/CN207488489U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638967A (en) * | 2018-06-15 | 2018-10-12 | 轩辕智驾科技（深圳）有限公司 | A kind of Car warning system and method for early warning based on millimetre-wave radar |
| CN108638967B (en) * | 2018-06-15 | 2021-12-17 | 轩辕智驾科技（深圳）有限公司 | Early warning method of automobile early warning system based on millimeter wave radar |
| CN109120890A (en) * | 2018-07-20 | 2019-01-01 | 南京图泰信息产业有限公司 | A kind of vehicle monitoring and early warning system |
| CN109263556A (en) * | 2018-11-14 | 2019-01-25 | 南京吾智智能科技有限公司 | A kind of automobile-used millimeter wave lane change early warning system |
| CN109870690A (en) * | 2019-03-14 | 2019-06-11 | 上海豫兴电子科技有限公司 | A kind of Radar for vehicle method for early warning, device and vehicle |
| CN109795412A (en) * | 2019-03-27 | 2019-05-24 | 深圳市元征科技股份有限公司 | A kind of preventing car door collision method for early warning and relevant device |
| CN112422672A (en) * | 2020-11-12 | 2021-02-26 | 李洁 | Electronic escorting system and escorting method |
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 4, No. 8 Deyi Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430205 Patentee after: Xuanyuan Idrive Technology (SHENZHEN) Co.,Ltd. Country or region after: China Address before: 518000, 12th Floor, Building 1, Yongxin Hui, No. 4078 Dongbin Road, Nanshan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: XUANYUAN IDRIVE TECHNOLOGY (SHENZHEN) CO.,LTD. Country or region before: China |