CN207617711U - A kind of anti-collision system for automobile based on TOF camera - Google Patents
A kind of anti-collision system for automobile based on TOF camera Download PDFInfo
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- CN207617711U CN207617711U CN201721614755.6U CN201721614755U CN207617711U CN 207617711 U CN207617711 U CN 207617711U CN 201721614755 U CN201721614755 U CN 201721614755U CN 207617711 U CN207617711 U CN 207617711U
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- tof camera
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Abstract
The utility model discloses a kind of anti-collision system for automobile based on TOF camera, are related to technical field of vehicle safety, and the anti-collision system for automobile includes：Central control unit, preceding TOF camera, rear TOF camera, vehicle speed sensor, control switch, brake control module and fuel-cut module, the central control unit is connected with preceding TOF camera, rear TOF camera, vehicle speed sensor, control switch, brake control module and fuel-cut module, the preceding TOF camera is mounted on automobile front side, TOF camera is mounted on automobile rear after described, and the control switch is mounted on vehicle console.The utility model sends out alarm and controls automobile automatic brake when can be less than safe distance at a distance from automobile is between front vehicles or barrier, and automobile is avoided to be caused an accident with front vehicles or barrier collision；Alarm is sent out when can be less than safe distance at a distance from automobile is between front vehicle or barrier.
Description
Technical field
The utility model is related to technical field of vehicle safety more particularly to a kind of anti-collision system for automobile based on TOF camera.
Background technology
In daily driving conditions, occur leading to rear-end collision because spacing is too short often.Therefore, according to speed in traveling
Appropriate spacing is kept, it is the key that prevent from knocking into the back to reserve enough braking distances.It is effective to there is distance survey in the prior art
Apart from the problems such as short, ranging information are not accurate enough in detail, rate of false alarm is high.As infrared distance measuring sensor or millimeter wave ranging sense
Device is separately positioned on car body front-end and back-end, and controller is connected, and people is made to understand vehicle front, rear vehicle on the run
The case where distance or barrier.The disadvantages of this solution is that infrared sensor, millimeter wave sensor measurement distance are short, by environment shadow
Ring it is big, and measurement method be it is point-to-point, cannot accurate detailed description vehicle or the entire three dimensions of barrier actual range
Information be easy to cause wrong report so that range-measurement system reliability is not high.
TOF is writing a Chinese character in simplified form for Time of flight, is literal translated as the meaning of flight time.So-called time-of-flight method 3D imagings,
It is that sensor continuously transmits modulated near infrared light chance object back reflection, sensor, which passes through, calculates light transmitting and reflection interval
Difference or phase difference, come the distance of scenery of being taken that converts, to generate depth information.This technology is with 3D laser sensor principle base
This is similar, and only 3D laser sensor is point by point scanning, and TOF camera is then the depth information for obtaining entire image simultaneously.
In addition, TOF camera is irradiated testee using active light source, it is disturbed by ambient light small.Therefore, using based on TOF
The anti-collision system for automobile of camera more accurately detailed can obtain the range information of vehicle or the entire three dimensions of barrier,
Prevent car crass.
Utility model content
The utility model overcomes existing anti-collision system for automobile ranging information not accurate enough in detail, rate of false alarm height, easily by the external world
A kind of defect that environment influences, it is proposed that anti-collision system for automobile based on TOF camera.The utility model can obtain in further detail
The range information of accurate vehicle or the entire three dimensions of barrier, can be at a distance from automobile be between front vehicles or barrier
Alarm is sent out when less than safe distance and controls automobile automatic brake, and automobile is avoided to be produced with front vehicles or barrier collision
It makes trouble former；Alarm is sent out when can be less than safe distance at a distance from automobile is between front vehicle or barrier.
The utility model can be realized by following mode：
A kind of anti-collision system for automobile based on TOF camera, the system comprises：Central control unit, preceding TOF camera, after
TOF camera, vehicle speed sensor, control switch, brake control module and fuel-cut module；The central control unit is with before
TOF camera, rear TOF camera, vehicle speed sensor, control switch, brake control module are connected with fuel-cut module, to TOF phases
The data of machine are acquired, handle, and the preceding TOF camera is mounted on the bumper of automobile front side, the rear TOF camera installation
In automobile tail, the control switch is mounted on vehicle console.
The preceding TOF camera, rear TOF camera are used to acquire the range information of each pixel in its overlay area in real time；In
Control unit is entreated, is connect with the preceding TOF camera, rear TOF camera, is acquired, handles for the data to TOF camera,
Testing result is exported, auxiliary completes car steering and alarm.
In the technical program, driver starts anti-collision device for automobile by controlling to switch, on automobile front side bumper before
TOF camera measures the actual range between this vehicle and front vehicles or barrier, the rear TOF camera of automobile tail measure this vehicle with
Actual range between front vehicle or barrier, and by the data transmission of measurement to central control unit, vehicle speed sensor is surveyed
The travel speed of this vehicle is measured, and by the data transmission of measurement to central control unit, central control unit is preset with different speeds
Corresponding safe distance.Central control unit determines corresponding safe distance according to the speed that vehicle speed sensor measures, and will
This vehicle and rear that actual range, rear TOF camera between this vehicle and front vehicles or barrier that preceding TOF camera measures measure
Actual range between vehicle or barrier, is compared with safe distance.When this vehicle and front vehicles or barrier of measurement
Between actual range be less than safe distance when, central control unit send control signal to brake control module and fuel-cut
Module, brake control module start automobile brake system braking, and fuel-cut module cuts off fuel supply, avoids Ben Che and front
Vehicle or barrier collision cause an accident；When the actual range between this vehicle and front vehicle or barrier of measurement is less than safety
Apart from when, audio alert unit alert, prompt driver understand traffic information.
Preferably, the anti-collision system for automobile further includes liquid crystal display, and the liquid crystal display is controlled mounted on automobile
On platform, and it is connected with central control unit.The safety in liquid crystal display this vehicle of screen display and front, front vehicle or barrier away from
From and actual range, convenient for driver understand correlation circumstance, regulation speed.
Preferably, the anti-collision device for automobile further includes audio alert unit and loud speaker, the audio alert unit point
It is not connected with central control unit and loud speaker.When Ben Che at a distance from front, front vehicle or barrier close to safe distance
When critical value, central control unit sends alarm signal to audio alert unit, and loud speaker sends out alarm, and driver is reminded to subtract
Speed, brake change speed.
The beneficial effects of the utility model are：
The utility model obtains this vehicle and front, the vehicle at rear or barrier three-dimensional spatial information using TOF camera, obtains
The range information arrived is more accurate detailed and reliable and affected by environment small, and error hair rate is low, avoids automobile and front, rear vehicle
Or barrier collision cause an accident.
Description of the drawings
Fig. 1 is the preceding TOF camera of the utility model, rear TOF camera scheme of installation；
Fig. 2 is a kind of structure connection block diagram of the utility model；
In figure：1, central control unit, 2, preceding TOF camera, 3, rear TOF camera, 4, control switch, 5, brake control mould
Block, 6, fuel-cut module, 7, liquid crystal display, 8, audio alert chip, 9, loud speaker, 10, vehicle speed sensor.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：The anti-collision system for automobile of the present embodiment, as shown in Figure 1, including central control unit 1, preceding TOF camera 2,
TOF camera 3, control switch 4, liquid crystal display 7, audio alert unit 8, loud speaker 9, vehicle speed sensor 10, brake control afterwards
Module 5 and fuel-cut module 6.Central control unit 1 respectively with preceding TOF camera 2, rear TOF camera 3, control switch 4, liquid crystal
Display screen 7, vehicle speed sensor 10, brake control module 5 are connected with fuel-cut module 6, audio alert unit 8 respectively with center
Control unit 1, loud speaker 9 are connected, and preceding TOF camera 2 is separately mounted to the bumper of automobile front side, car tail with rear TOF camera 3
Portion, controls switch 4 and liquid crystal display 7 is mounted on vehicle console.
When automobile is when running at high speed, driver can start anti-collision device for automobile, automobile front side insurance by controlling switch 4
Preceding TOF camera 2 on thick stick measures the actual range between this vehicle and front vehicles or barrier, the rear TOF camera 3 of automobile tail
Measure the actual range between this vehicle and front vehicle or barrier, and by the data transmission of measurement to central control unit 1, vehicle
Fast sensor 10 measures the travel speed of this vehicle, and by the data transmission of measurement to central control unit 1, central control unit 1
It is preset with the safe distance corresponding to different speeds.The speed determination pair that central control unit 1 is measured according to vehicle speed sensor 10
The safe distance answered, and this vehicle and front, the safe distance and reality of front vehicle or barrier are shown on liquid crystal display 7
Distance understands correlation circumstance, regulation speed convenient for driver.Meanwhile central control unit 1 is by preceding TOF camera 2, rear TOF camera
Actual range between this vehicle measured and front, front vehicle or barrier is compared with safe distance.When Ben Che is with before
When the actual range of square vehicle or barrier is close to safe distance critical value, central control unit 1 is sent to audio alert chip 8
Alarm signal, loud speaker 9 send out alarm, and driver is reminded to slow down or brake；When Ben Che and front vehicles or the reality of barrier
When border distance is less than safe distance, central control unit 1 sends control signal to brake control module 5, fuel-cut module 6,
Brake control module 5 starts automobile brake system braking, and fuel-cut module 6 cuts off fuel supply, avoids Ben Che and front vehicle
Or barrier collide, prevent collision accident；When the close peace of the actual range of Ben Che and front vehicle or barrier
When full distance critical value, central control unit 1 sends alarm signal to audio alert chip 8, and loud speaker 9 sends out alarm, carries
Awake driver pays attention to road conditions, changes speed；The utility model can be less than at a distance from automobile is between front vehicles or barrier
Automobile automatic brake is controlled when safe distance, and automobile is avoided to be caused an accident with front vehicles or barrier collision；And automobile with
When the distance between front vehicle or barrier are less than safe distance, alert reminds driver to pay attention to road conditions.
Specific embodiment is applied in the utility model to be expounded the principles of the present invention and embodiment, with
The explanation of upper embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for this field
Those skilled in the art, according to the thought of the utility model, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (3)
1. a kind of anti-collision system for automobile based on TOF camera, which is characterized in that
The anti-collision system for automobile includes：Central control unit, preceding TOF camera, rear TOF camera, vehicle speed sensor, control are opened
Pass, brake control module and fuel-cut module；
The central control unit and preceding TOF camera, rear TOF camera, vehicle speed sensor, control switch, brake control module and
Fuel-cut module be connected, the data of TOF camera are acquired, handle output testing result, auxiliary complete car steering and
Alarm；
The preceding TOF camera is mounted on automobile front side, and the rear TOF camera is mounted on automobile rear, the control switch installation
On vehicle console；
The preceding TOF camera, the rear TOF camera are used to acquire the range information of each pixel in its overlay area in real time.
2. anti-collision system for automobile as described in claim 1, which is characterized in that further include liquid crystal display, the liquid crystal display
Screen is mounted on vehicle console, and is connected with central control unit.
3. anti-collision system for automobile as described in claim 1, it is characterised in that：Further include audio alert unit and loud speaker, institute
Predicate sound alarm unit is connected with central control unit and loud speaker respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721614755.6U CN207617711U (en) | 2017-11-28 | 2017-11-28 | A kind of anti-collision system for automobile based on TOF camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721614755.6U CN207617711U (en) | 2017-11-28 | 2017-11-28 | A kind of anti-collision system for automobile based on TOF camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207617711U true CN207617711U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721614755.6U Active CN207617711U (en) | 2017-11-28 | 2017-11-28 | A kind of anti-collision system for automobile based on TOF camera |
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| CN (1) | CN207617711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591814A (en) * | 2018-12-20 | 2019-04-09 | 武汉职业技术学院 | A kind of automobile safety control method based on two-way range rate measurement |
| CN112278017A (en) * | 2020-11-03 | 2021-01-29 | 中车青岛四方机车车辆股份有限公司 | Vehicle alarm method and device and train |
-
2017
- 2017-11-28 CN CN201721614755.6U patent/CN207617711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109591814A (en) * | 2018-12-20 | 2019-04-09 | 武汉职业技术学院 | A kind of automobile safety control method based on two-way range rate measurement |
| CN112278017A (en) * | 2020-11-03 | 2021-01-29 | 中车青岛四方机车车辆股份有限公司 | Vehicle alarm method and device and train |
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