CN111090097A - Millimeter wave radar automobile anti-collision system - Google Patents
Millimeter wave radar automobile anti-collision system Download PDFInfo
- Publication number
- CN111090097A CN111090097A CN201810917167.2A CN201810917167A CN111090097A CN 111090097 A CN111090097 A CN 111090097A CN 201810917167 A CN201810917167 A CN 201810917167A CN 111090097 A CN111090097 A CN 111090097A
- Authority
- CN
- China
- Prior art keywords
- module
- processing module
- automobile
- information
- information processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000010365 information processing Effects 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 206010039203 Road traffic accident Diseases 0.000 description 5
- 238000013459 approach Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention provides a millimeter wave radar automobile anti-collision system, which comprises a GPS receiving module, a signal processing module and a signal processing module, wherein the GPS receiving module is used for positioning the current position of an automobile; the information processing module is used for analyzing the data information from the GPS receiving module; the geographic information module is used for providing various geographic information near the current position of the automobile for the information processing module; and the millimeter wave radar module is used for providing the information processing module with the number, the speed, the distance and the angle information of the targets at a certain angle in front of the automobile and within a distance range. The system can detect all moving and static targets in a front scanning area, and has enough dynamic measurement range for various vehicles and small flyers with different types and different radar reflection areas, so as to ensure correct detection and early warning and reduce accident rate.
Description
Technical Field
The invention relates to the technical field of radar communication and automotive electronics, in particular to a millimeter wave radar automobile anti-collision system.
Background
In recent years, with the development of economy, automobiles become indispensable tools in modern social life as main means of transportation and transportation, and are being used by more and more people, the transportation volume of road transportation is increasing, the automobile consumption is rapidly increasing every year, the automobile holding amount is also increasing, the automobile density on roads is also increasing, and the following problems are obvious: with the rapid increase of the number of automobiles, traffic accidents frequently occur, which not only directly threatens the life safety of people, but also causes huge economic loss.
In China, there are three main objective reasons for frequent traffic accidents. Firstly, because the number of expressways in China is small and facilities of the expressways are relatively lagged behind (such as a road toll payment system and the like); secondly, as China is in the period of economic high-speed development, the purchasing power of people and the production quantity of automobiles are greatly improved in the period, so that the highway is relatively short, and the factors such as congestion, blockage and the like of the highway are easy to cause traffic accidents; finally, due to the influence of weather, such as rain, fog and the like, the vision of people is influenced, the visibility is reduced, and meanwhile, traffic accidents are caused because most automobiles lack a safety system for actively monitoring whether the front obstacle area exists.
Therefore, in view of the above drawbacks, it is necessary to design a millimeter wave radar vehicle collision avoidance system to solve the above drawbacks.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a millimeter wave radar automobile anti-collision system which can judge the automobile running condition to predict the safety of the automobile, automatically take measures to prevent traffic accidents and reduce the accident occurrence probability.
The invention is realized by the following steps: a millimeter wave radar automobile anti-collision system comprises a GPS receiving module, a signal processing module and a signal processing module, wherein the GPS receiving module is used for positioning the current position of an automobile; the information processing module is connected with the GPS receiving module and is used for analyzing the data information from the GPS receiving module; the geographic information module is connected with the information processing module, contains a satellite map updated in real time and is used for providing various geographic information near the current position of the automobile for the information processing module; the millimeter wave radar module is connected with the information processing module and used for providing the information processing module with the number, the speed, the distance and the angle information of the targets at a certain angle in front of the automobile and within a distance range.
The display module is connected to the information processing module and is used for displaying the information acquired from the information processing module in a graphic mode.
Further, the millimeter wave radar module includes a low noise amplifier, a mixer connected to the low noise amplifier, a filter connected to the mixer, an intermediate frequency amplifier connected to the filter, a circulator connected to the low noise amplifier, a power divider connected to the circulator and the mixer, an amplifier connected to the power divider, and a voltage controlled oscillator connected to the amplifier.
Still further, the voltage control oscillator further comprises a triangular wave generator connected to the voltage control oscillator.
The invention provides a millimeter wave radar automobile anti-collision system, which comprises a GPS receiving module, a signal processing module and a signal processing module, wherein the GPS receiving module is used for positioning the current position of an automobile; the information processing module is connected with the GPS receiving module and is used for analyzing the data information from the GPS receiving module; the geographic information module is connected with the information processing module, contains a satellite map updated in real time and is used for providing various geographic information near the current position of the automobile for the information processing module; the millimeter wave radar module is connected with the information processing module and used for providing the information processing module with the number, the speed, the distance and the angle information of the targets at a certain angle in front of the automobile and within a distance range. The millimeter wave radar automobile anti-collision system can detect all moving and static targets in a front scanning area, has enough dynamic measurement range for various vehicles and small-sized flying objects with different types and different radar reflection areas to ensure correct detection and early warning, and can eliminate interference targets on adjacent lanes and ensure that the vehicle can still effectively detect the targets when turning when the automobile is in a road curve, thereby generating warning and reducing the accident rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic block diagram of a millimeter wave radar automobile collision avoidance system according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a structure of a millimeter wave radar module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a millimeter wave radar vehicle collision avoidance system, including a GPS receiving module 1, configured to receive current position information of a vehicle, so as to locate a current position of the vehicle; the information processing module 2 is connected to the GPS receiving module 1, and is configured to analyze data information from the GPS receiving module 1, determine whether the vehicle is approaching or traveling in a curve, and obtain location information of a potential threat target by a specific determination method: combining the positioning information of the GPS receiving module 1 with the current geographic information map of the vehicle called from the geographic information module 3 to obtain a geographic information map taking the vehicle as a reference position; meanwhile, comparing the current geographic information map of the target information obtained by the detection of the millimeter wave radar module 4 to obtain whether the automobile is in the curve driving; if so, comparing the distance R1 from the automobile to the target with the distance R2 from the automobile to the curve boundary in the driving direction, and when R1 is larger than R2, judging that the target is positioned outside the road and is a false target without generating warning information; and when R1 is less than or equal to R2, the target is an in-road or roadside target, the corresponding targets which cannot threaten the automobile, such as buildings, mountain bodies, trees and the like in the geographic information map are removed, other potential threat targets are obtained, and an alarm is generated. The geographic information module 3 is connected to the information processing module 2, and the geographic information module 3 comprises a satellite map updated in real time and is used for providing various geographic information near the current position of the automobile for the information processing module 2; millimeter wave radar module 4, millimeter wave radar module 4 connect in information processing module 2 is used for information processing module 2 provides certain angle in the place ahead of the car and target number, speed, distance and the angle information in the range of distance, millimeter wave radar module 4 because operating frequency is high, but greatly reduced antenna size to be favorable to reducing the radar size, thereby make the automobile body pleasing to the eye.
Further, as shown in fig. 1, the system further includes a display module 5, where the display module 5 is connected to the information processing module 2, and is configured to display information obtained from the information processing module 2, such as obtained information of characters, data, and graphics of a potential threat target.
Further, as shown in fig. 1, the GPS receiving module 1 transmits the received positioning information to the information processing module 2 in real time, and the information processing module 2 calls the geographic information of the current position of the vehicle from the geographic information module 3 in combination with the positioning information of the GPS receiving module 1; when the automobile is running, the information processing module 2 determines whether the automobile approaches or is in curve running through analysis and judgment of geographic information, and if the automobile approaches or is in curve running, the information processing module 2 gives a curve running prompt to a driver through the display module 5; the millimeter wave radar module 4 detects a certain angle range and a distance range in front of the automobile in real time, and provides information such as the number, the speed, the distance and the angle of the targets in the certain angle range and the distance range in front of the automobile to the information processing module 2; the information processing module 2 marks the potential threat target information obtained by the detection of the millimeter wave radar module 4 on a geographic information map with an automobile as a reference position; the display module 5 displays the detection target information including the millimeter wave radar module 4, the geographic information map information and the possible alarm information acquired from the information processing module 2 in a graphic mode, so as to provide reference for the driving operation of the driver.
Further, as shown in fig. 1 and fig. 2, the millimeter wave radar module 4 includes a low noise amplifier 41, where the low noise amplifier 41 is used to amplify a low voltage signal from an antenna (not shown) with a small signal, and the low noise amplifier 41 may generally select a low noise figure, a sufficient power gain, a good operation stability, a sufficient bandwidth, and a large dynamic range; a mixer 42 connected to the low noise amplifier 41, the mixer 42 being configured to convert the signal into an intermediate frequency signal; a filter 43 connected to said mixer 42, said filter 43 being adapted to filter out spurious and unwanted signals; an intermediate frequency amplifier 44 connected to said filter 43. The intermediate frequency amplifier 44 is used for amplifying signals; a circulator 45 connected to the low noise amplifier 41; a power divider 46 connected to the circulator 45 and the mixer 42, where the power divider 46 may divide a path of input signal energy into two or more paths of devices outputting equal or unequal energy; an amplifier 47 connected to the power divider 46, and a voltage controlled oscillator 48 connected to the amplifier 47. The voltage controlled oscillator 48 is used to generate a frequency modulated signal to achieve fast frequency tuning.
Further, as shown in fig. 1 and 2, the millimeter wave radar module 4 further includes a triangular wave generator 49, and the triangular wave generator 49 is connected to the voltage controlled oscillator 48. The triangular wave generator 49 is used to generate a modulation voltage signal.
Further, as shown in fig. 1 and fig. 2, the triangular wave generator 49 generates a modulation voltage signal, controls the voltage controlled oscillator 48 to output a continuous wave frequency modulation signal, amplifies the signal power by the amplifier 47, and then divides the signal into two paths by the power divider 46, one path of the signal is sent to the circulator 45 and radiated to a free space by an antenna (not shown), the other path of the signal is down-converted in the frequency mixer 42 with a transmission signal received by the antenna (not shown), and the other path of the signal is filtered by the filter 43 to remove spurious and unwanted signals, and then amplified by the intermediate frequency amplifier 44, and then is analyzed and processed by the information processing module 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a millimeter wave radar car collision avoidance system which characterized in that: comprises that
The GPS receiving module is used for positioning the current position of the automobile;
the information processing module is connected with the GPS receiving module and is used for analyzing the data information from the GPS receiving module;
the geographic information module is connected with the information processing module, contains a satellite map updated in real time and is used for providing various geographic information near the current position of the automobile for the information processing module;
the millimeter wave radar module is connected with the information processing module and used for providing the information processing module with the number, the speed, the distance and the angle information of the targets at a certain angle in front of the automobile and within a distance range.
2. The millimeter wave radar automobile collision avoidance system of claim 1, wherein: the display module is connected to the information processing module and is used for displaying the information acquired from the information processing module in a graphic mode.
3. The millimeter wave radar automobile collision avoidance system of claim 1, wherein: the millimeter wave radar module comprises a low noise amplifier, a mixer connected with the low noise amplifier, a filter connected with the mixer, an intermediate frequency amplifier connected with the filter, a circulator connected with the low noise amplifier, a power divider connected with the circulator and the mixer, an amplifier connected with the power divider, and a voltage control oscillator connected with the amplifier.
4. A millimeter wave radar vehicle collision avoidance system, as claimed in claim 3, wherein: the voltage control oscillator further comprises a triangular wave generator connected to the voltage control oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917167.2A CN111090097A (en) | 2018-08-13 | 2018-08-13 | Millimeter wave radar automobile anti-collision system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810917167.2A CN111090097A (en) | 2018-08-13 | 2018-08-13 | Millimeter wave radar automobile anti-collision system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111090097A true CN111090097A (en) | 2020-05-01 |
Family
ID=70391276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810917167.2A Pending CN111090097A (en) | 2018-08-13 | 2018-08-13 | Millimeter wave radar automobile anti-collision system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111090097A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236388A (en) * | 1991-01-18 | 1992-08-25 | Mazda Motor Corp | Radar system for motorcar |
| CN101876707A (en) * | 2009-12-21 | 2010-11-03 | 薛良金 | Millimeter wave/infrared composite detection radar |
| CN102431495A (en) * | 2011-12-01 | 2012-05-02 | 北京理工大学 | 77GHz millimeter wave corner false-alarm inhibiting system for automobile active anticollision radar |
| CN207663053U (en) * | 2017-11-03 | 2018-07-27 | 深圳市欧克蓝科技有限公司 | A kind of millimetre-wave radar anti-collision system for automobile |
| CN109752716A (en) * | 2017-11-03 | 2019-05-14 | 深圳市欧克蓝科技有限公司 | A kind of millimetre-wave radar anti-collision system for automobile |
-
2018
- 2018-08-13 CN CN201810917167.2A patent/CN111090097A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236388A (en) * | 1991-01-18 | 1992-08-25 | Mazda Motor Corp | Radar system for motorcar |
| CN101876707A (en) * | 2009-12-21 | 2010-11-03 | 薛良金 | Millimeter wave/infrared composite detection radar |
| CN102431495A (en) * | 2011-12-01 | 2012-05-02 | 北京理工大学 | 77GHz millimeter wave corner false-alarm inhibiting system for automobile active anticollision radar |
| CN207663053U (en) * | 2017-11-03 | 2018-07-27 | 深圳市欧克蓝科技有限公司 | A kind of millimetre-wave radar anti-collision system for automobile |
| CN109752716A (en) * | 2017-11-03 | 2019-05-14 | 深圳市欧克蓝科技有限公司 | A kind of millimetre-wave radar anti-collision system for automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102289952B (en) | Vehicle anti-collision method based on satellite navigation system and navigation system and application thereof | |
| CN101625797B (en) | Early warning method when automobile closes at high speed and early warning device | |
| US6438491B1 (en) | Methods and apparatus for stationary object detection | |
| CN105608926B (en) | Alarm prompt method, alarm prompt system and terminal | |
| US11055933B2 (en) | Method for operating a communication network comprising a plurality of motor vehicles, and motor vehicle | |
| CN110058240A (en) | The dynamic control and actuating of radar and Vehicular system for weather detection | |
| US20150061894A1 (en) | Passing Assistance System and Method | |
| CN110549941A (en) | pedestrian collision graded early warning method based on real-time information | |
| CN109752716A (en) | A kind of millimetre-wave radar anti-collision system for automobile | |
| CN102253370A (en) | Automotive anti-collision radar signal processing device by use of 77GHz millimeter waves | |
| CN113147733A (en) | Intelligent speed limiting system and method for automobile in rain, fog and sand-dust weather | |
| US20070038361A1 (en) | System and method for improving traffic flow | |
| CN201465309U (en) | Device prewarning when vehicle approaches at high speed | |
| CN109435847A (en) | A kind of vehicle anti-rear collision method for early warning based on camera and millimetre-wave radar | |
| CN105427671A (en) | Driving aid device in fog area based on radar detection | |
| CN113228133B (en) | Driving support device | |
| CN202119902U (en) | 77 GHz millimeter wave automobile anti-collision radar signal processing device | |
| CN111090097A (en) | Millimeter wave radar automobile anti-collision system | |
| JPH04299800A (en) | Microwave apparatus for preventing collision between vehicles and data transmitting method therefor | |
| RU2676854C2 (en) | Method for preventing collision of vehicles | |
| CN207663053U (en) | A kind of millimetre-wave radar anti-collision system for automobile | |
| KR20170067495A (en) | Apparatus for preventing car collision and method thereof | |
| CN106601028B (en) | A kind of vehicle modified line based reminding method and vehicle modified line system for prompting | |
| US20210261116A1 (en) | Information processing device and driving assistance device | |
| KR101360984B1 (en) | System and method for detecting obstacle on road by using radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200501 |
|
| WD01 | Invention patent application deemed withdrawn after publication |