CN213083033U - Driving safety auxiliary system combining microwave radar and automobile data recorder - Google Patents
Driving safety auxiliary system combining microwave radar and automobile data recorder Download PDFInfo
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- CN213083033U CN213083033U CN202021931727.9U CN202021931727U CN213083033U CN 213083033 U CN213083033 U CN 213083033U CN 202021931727 U CN202021931727 U CN 202021931727U CN 213083033 U CN213083033 U CN 213083033U
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Abstract
The utility model relates to a driving safety auxiliary system that microwave radar and vehicle event data recorder combined, its technical scheme main points are: the method comprises the following steps: the system comprises two microwave radars for detecting the information of coming vehicles at the lateral rear part of the automobile, a vehicle data recorder for acquiring image information in front of the automobile, a display device for displaying the information of coming vehicles and the image information, and an early warning device for early warning when the coming vehicles at the rear part are detected; the vehicle event data recorder includes: the controller and the memorizer used for storing the information and picture information of coming car; the two microwave radars are respectively arranged on two sides of the tail of the automobile; the two microwave radars are electrically connected with the controller; the display device, the early warning device and the memory are electrically connected with the controller; the automobile data recorder is arranged on the front windshield of the automobile; the display device and the early warning device are arranged on an instrument panel of the automobile; this application has the advantage of conveniently surveying whether have the barrier in the blind area scope.
Description
Technical Field
The utility model relates to a car safe driving assists technical field, and more specifically says, it relates to a driving safety auxiliary system that microwave radar and vehicle event data recorder combine.
Background
With the development of economy, automobiles are further popularized and become an indispensable tool in daily life, but meanwhile, for novice and even people who often drive the automobiles, the dead zone of the doubling in the driving process is difficult to eliminate, and due to the design of the automobile body, the visual range provided by the reflector always has some dead zones, whether mobile automobile obstacles such as automobiles and the like exist in the dead zones or not and the real-time conditions of the obstacles, particularly poor driving environments with low visibility such as heavy fog, rain, snow and night can not be seen clearly, and thus, great potential safety hazards exist when the automobiles are driven to change lanes. It is also becoming an increasingly important topic of people to help drivers avoid traffic accidents caused by lane change during driving and provide basis for accident identification.
The existing BSD technology of the microwave radar dead zone detection system can only detect the distance, the direction and the relative speed of an automobile barrier in a dead zone range, but cannot store and record, and information detected by a radar cannot be used as an accident identification basis after a traffic accident occurs.
The existing DVR automobile data recorder is more used for video recording in front of an automobile and does not have the functions of recording and detecting whether automobile barriers exist in a rear blind area range or not.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a driving safety auxiliary system that microwave radar and vehicle event data recorder combine has the advantage of whether having the barrier in the convenient detection blind area scope.
The above technical purpose of the present invention can be achieved by the following technical solutions: a driving safety assistance system with a microwave radar and a vehicle event data recorder combined comprises:
the system comprises two microwave radars for detecting the information of coming vehicles at the lateral rear part of the automobile, a vehicle data recorder for acquiring image information in front of the automobile, a display device for displaying the information of coming vehicles and the image information, and an early warning device for early warning when the coming vehicles at the rear part are detected; the vehicle event data recorder includes: the controller and the memorizer used for storing the information and picture information of coming car;
the two microwave radars are respectively arranged on two sides of the tail of the automobile; the two microwave radars are electrically connected with the controller; the display device, the early warning device and the memory are electrically connected with the controller; the automobile data recorder is arranged on the front windshield of the automobile; the display device and the early warning device are installed on an instrument panel of the automobile.
Optionally, the vehicle event data recorder includes: a bottom shell, a face shell and a camera assembly; the face shell is fixed on the bottom shell, the face shell and the bottom shell form a cavity, the controller is installed in the cavity, the camera assembly is installed in the cavity, and the camera assembly is electrically connected with the controller; the front windshield is characterized in that an adhesive layer is arranged on the face shell and is adhered to the front windshield of the automobile.
Optionally, a through hole is formed in the face shell, and the camera assembly is mounted in the through hole.
Optionally, the controller is a single chip microcomputer, and the memory is an SD card.
Optionally, the early warning device includes: the warning device comprises a left warning lamp for prompting that a vehicle comes from the left rear part, a right warning lamp for prompting that a vehicle comes from the right rear part, and a buzzer; the left early warning lamp, the right early warning lamp and the buzzer are all electrically connected with the controller; the left early warning lamp is arranged on the left side of the automobile instrument panel; the right early warning lamp is arranged on the right side of the automobile instrument panel; the buzzer is installed on the automobile instrument panel.
Optionally, the display device is a DVD display screen, and the DVD display screen is installed on an automobile dashboard; the DVD display screen is electrically connected with the controller.
Optionally, the display device, the early warning device and the two microwave radars are all connected with the controller through a wire harness.
Optionally, the vehicle-mounted controller further comprises a vehicle-mounted MCU, and the vehicle-mounted MCU is electrically connected with the controller.
To sum up, the utility model discloses following beneficial effect has: the method comprises the steps that firstly, coming vehicle information behind an automobile is collected through a microwave radar, then whether a coming vehicle behind and the automobile have lane changing collision risks or not is determined according to the coming vehicle information, if the coming vehicle and the automobile have the lane changing collision risks, steering information of the automobile is collected, and an early warning device correspondingly sends out light early warning and/or sound whistling early warning according to the steering information of the automobile; then according to the distance between the coming vehicle behind and the automobile, the controller selects a corresponding early warning picture from the memory, the early warning picture is superimposed on the video stream acquired by the automobile data recorder, the video stream is displayed through the DVD display screen, and finally the video stream on which the early warning picture is superimposed is written into a card and stored; whether the obstacles exist in the blind area range can be conveniently detected.
Drawings
FIG. 1 is a schematic assembly view of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of the automobile data recorder of the present invention;
fig. 3 is a block diagram of the present invention.
In the figure: 1. a microwave radar; 2. a vehicle event data recorder; 21. a bottom case; 22. a face shell; 23. a camera assembly; 3. a display device; 4. an early warning device; 41. a left early warning light; 42. a right early warning light; 43. a buzzer; 5. a memory; 6. a controller; 7. a chamber; 8. an adhesive layer; 9. a through hole; 10. a vehicle-mounted MCU; 11. a wire harness.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The utility model provides a driving safety auxiliary system that microwave radar and vehicle event data recorder combine, as shown in fig. 1-3, include:
the system comprises two microwave radars 1 for detecting the information of the coming vehicle at the side and back of the automobile, a vehicle data recorder 2 for acquiring the image information in front of the automobile, a display device 3 for displaying the information of the coming vehicle and the image information, and an early warning device 4 for early warning when the coming vehicle at the back is detected; the vehicle event data recorder includes: the controller and the memorizer used for storing the information and picture information of coming car;
two microwave radars 1 are respectively arranged on two sides of the vehicle tail; the two microwave radars 1 are both electrically connected with the controller 6; the display device 3, the early warning device 4 and the memory 5 are all electrically connected with the controller 6; the automobile data recorder 2 is arranged on the front windshield of the automobile; the display device 3 and the early warning device 4 are installed at the dashboard of the automobile.
In practical application, the microwave radars 1 on two sides of the tail of the vehicle monitor the left rear part and the right rear part of the vehicle, the microwave radars 1 emit microwaves to the lateral rear part of the vehicle, and the microwaves are radiated to the microwave radars 1 after contacting with a coming vehicle behind, so that the distance, the relative position and the relative speed between the coming vehicle behind and the vehicle are monitored; collecting image information in front of the automobile through the automobile data recorder 2, and calculating according to the relative distance and the relative speed to obtain collision time; generally, when an automobile sends a rear-end collision, the collision time between a rear automobile and a front automobile is generally short; in order to avoid that a rear vehicle collides with the automobile when the automobile changes lanes, a certain reaction time needs to be reserved for the rear vehicle, namely collision time, wherein the preset collision time is usually 3s, and enough deceleration time can be given to the rear vehicle, so that collision is avoided; if the calculated collision time is less than 3s, sending collision early warning to a driver of the automobile to remind the driver of the automobile; if the lane change has collision risk, the controller 6 superimposes the information of the coming vehicle behind on the video data collected by the automobile data recorder 2 and displays the information through the display device 3; finally, the video data superposed with the information of the coming vehicle behind is stored in the memory 5, so that the specific situation of the coming vehicle behind the automobile, namely the change of the relative speed and the relative distance, can be recorded when a traffic accident occurs, and the change can be used as the basis for accident identification. The collision time TTC is the minimum early warning time for ensuring that the reflection time of a person and the braking distance in the early warning of the collision of the front vehicle can achieve the braking of the vehicle, and according to scientific statistics, when a warning is given to the vehicle 2.5s in advance, the collision can be avoided, and in the application, the collision time is used as the minimum time for avoiding the collision of the rear vehicle with the vehicle caused by the fact that the rear vehicle is too late to reflect or the braking distance is too small, and is used as a preset judgment condition for possible collision; namely, if the collision time TTC is less than 3s, the lane change is judged to have the risk that the vehicle coming from the rear collides with the vehicle.
Further, the drive recorder 2 includes: a bottom shell 21, a face shell 22 and a camera assembly 23; the face shell 22 is fixed on the bottom shell 21, the face shell 22 and the bottom shell 21 form a cavity 7, the controller 6 is installed in the cavity 7, the camera assembly 23 is installed in the signature, and the camera assembly 23 is electrically connected with the controller 6; the face shell 22 is provided with an adhesive layer 8, and the adhesive layer 8 is adhered to the front windshield of the automobile. When video data in front of an automobile is obtained, the adhesive layer 8 adheres the surface shell 22 to a front windshield, so that the bottom shell 21 with the camera assembly 23 is fixed, the camera assembly 23 positioned in the lower end of the bottom shell 21 obtains the video data in front of the automobile and transmits the video data to the controller 6, the controller 6 operates the video data according to signals transmitted by the microwave radar 1, and if collision risks exist, the video data overlapped with information of coming automobiles at the rear are transmitted to the display device 3 to be displayed.
Further, in order to facilitate the camera assembly 23 to acquire video data in front of the vehicle, in this embodiment, a through hole 9 is formed in the face shell 22, and the camera assembly 23 is installed in the through hole 9; the stability of the camera assembly 23 in acquiring the video data in front of the automobile can be improved.
Further, the controller 6 is a single chip microcomputer, and the memory 5 is an SD card. The single chip microcomputer is small in size and light in weight, and can be conveniently placed in the bottom shell 21, and the SD card can be directly inserted into the single chip microcomputer, so that the storage 5 is conveniently connected with the controller 6.
Further, the warning device 4 includes: a left early warning lamp 41 for prompting that a vehicle comes from the left rear part, a right early warning lamp 42 for prompting that a vehicle comes from the right rear part, and a buzzer 43; the left early warning lamp 41, the right early warning lamp 42 and the buzzer 43 are all electrically connected with the controller 6; the left early warning lamp 41 is arranged on the left side of the automobile instrument panel; the right early warning lamp 42 is arranged on the right side of the automobile instrument panel; the buzzer 43 is mounted on the dashboard of the vehicle. When a rear-side vehicle is detected, a long-time lightening early warning or a flickering early warning is performed according to the direction of the vehicle, namely the left early warning lamp 41 or the right early warning lamp 42, and the buzzer 43 sends out a buzzing early warning when the distance is short.
Further, the vehicle-mounted MCU10 is further included, and the vehicle-mounted MCU10 is electrically connected with the controller 6. The vehicle-mounted MCU10 can identify the steering information of the automobile, and the controller 6 further improves the early warning effect according to the steering information of the automobile.
In practical application, if a driver drives an automobile and the automobile is in straight line driving, a left early warning lamp 41 of the automobile is turned on to send out a long-light early warning if the automobile is in a collision distance and the collision time is less than 3 s; if a driver rotates a steering wheel or turns on the steering wheel, collecting whether the steering lamp of the automobile is turned on and the rotation condition of the steering wheel, confirming a lane corresponding to a rear coming automobile according to the turning condition corresponding to the steering lamp and the rotation condition of the steering wheel, and if the coming automobile is in the lane to be rotated, simultaneously sending out a whistling early warning and a light flickering early warning, wherein the whistling early warning is sent out by a buzzer 43, and the light flickering early warning is sent out by an LED early warning lamp in the corresponding direction in the automobile according to the rotation direction; if no rear vehicle comes on the lane of the vehicle in the direction to be rotated, no collision early warning is sent out; if the automobile has no steering information, the LED early warning lamp corresponding to the direction of the coming automobile in the automobile is on for a long time.
Optionally, the display device 3 is a DVD display screen, and the DVD display screen is installed on an automobile dashboard; the DVD display is electrically connected to the controller 6. The DVD display screen positioned at the instrument panel of the automobile has a larger picture, so that a driver or a passenger can conveniently observe whether the automobile has a rear car or not in the side rear of the automobile.
Optionally, the display device 3, the early warning device 4 and the two microwave radars 1 are all connected with the controller 6 through a wire harness 11. Compared with communication connection, the connection of the wire harness 11 has better stability and propagation speed, and the stability and response efficiency of the system are improved.
In the specific implementation process, firstly, the coming vehicle information behind the automobile is collected through the microwave radar 1, then whether the coming vehicle behind and the automobile have the lane change collision risk or not is determined according to the coming vehicle information, if the lane change collision risk exists, the steering information of the automobile is collected, and the early warning device 4 correspondingly sends out light early warning and/or sound buzzing early warning according to the steering information of the automobile; and then according to the distance between the coming vehicle behind and the automobile, the controller 6 selects the corresponding early warning picture from the memory 5, superimposes the early warning picture on the video stream acquired by the automobile data recorder 2, displays the early warning picture through a DVD display screen, and finally stores the video data superimposed with the early warning picture in the memory 5.
The utility model discloses a driving safety auxiliary system that microwave radar and vehicle event data recorder combine can conveniently survey whether there is the barrier in the blind area scope.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A driving safety auxiliary system that microwave radar and vehicle event data recorder combine, its characterized in that includes:
the system comprises two microwave radars for detecting the information of coming vehicles at the lateral rear part of the automobile, a vehicle data recorder for acquiring image information in front of the automobile, a display device for displaying the information of coming vehicles and the image information, and an early warning device for early warning when the coming vehicles at the rear part are detected; the vehicle event data recorder includes: the controller and the memorizer used for storing the information and picture information of coming car;
the two microwave radars are respectively arranged on two sides of the tail of the automobile; the two microwave radars are electrically connected with the controller; the display device, the early warning device and the memory are electrically connected with the controller; the automobile data recorder is arranged on the front windshield of the automobile; the display device and the early warning device are installed on an instrument panel of the automobile.
2. The microwave radar and tachograph combined driving safety assistance system of claim 1, wherein the tachograph comprises: a bottom shell, a face shell and a camera assembly; the face shell is fixed on the bottom shell, the face shell and the bottom shell form a cavity, the controller is installed in the cavity, the camera assembly is installed in the cavity, and the camera assembly is electrically connected with the controller; the front windshield is characterized in that an adhesive layer is arranged on the face shell and is adhered to the front windshield of the automobile.
3. The microwave radar and driving safety auxiliary system combined with the automobile data recorder as claimed in claim 2, wherein the face shell is provided with a through hole, and the camera assembly is mounted in the through hole.
4. The driving safety auxiliary system that microwave radar combines with vehicle event data recorder of claim 3, characterized by, that the controller is the singlechip, and the memory is the SD card.
5. The driving safety assistance system of claim 1, wherein the warning device comprises: the warning device comprises a left warning lamp for prompting that a vehicle comes from the left rear part, a right warning lamp for prompting that a vehicle comes from the right rear part, and a buzzer; the left early warning lamp, the right early warning lamp and the buzzer are all electrically connected with the controller; the left early warning lamp is arranged on the left side of the automobile instrument panel; the right early warning lamp is arranged on the right side of the automobile instrument panel; the buzzer is installed on the automobile instrument panel.
6. The driving safety assistance system of a microwave radar combined with a driving recorder as claimed in claim 4 or 5, wherein the display device is a DVD display screen, and the DVD display screen is installed on a dashboard of the automobile; the DVD display screen is electrically connected with the controller.
7. The driving safety assistance system combining the microwave radar and the driving recorder as claimed in claim 4 or 5, wherein the display device, the early warning device and the two microwave radars are connected to the controller through a wire harness.
8. The driving safety auxiliary system that microwave radar combines with vehicle event data recorder of claim 1, characterized by, further includes on-vehicle MCU, on-vehicle MCU with the controller electricity is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021931727.9U CN213083033U (en) | 2020-09-07 | 2020-09-07 | Driving safety auxiliary system combining microwave radar and automobile data recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021931727.9U CN213083033U (en) | 2020-09-07 | 2020-09-07 | Driving safety auxiliary system combining microwave radar and automobile data recorder |
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| Publication Number | Publication Date |
|---|---|
| CN213083033U true CN213083033U (en) | 2021-04-30 |
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| CN202021931727.9U Active CN213083033U (en) | 2020-09-07 | 2020-09-07 | Driving safety auxiliary system combining microwave radar and automobile data recorder |
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| CN (1) | CN213083033U (en) |
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- 2020-09-07 CN CN202021931727.9U patent/CN213083033U/en active Active
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