CN206264897U - A kind of device for reducing lane-change early warning rate of false alarm - Google Patents
A kind of device for reducing lane-change early warning rate of false alarm Download PDFInfo
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- CN206264897U CN206264897U CN201621277060.9U CN201621277060U CN206264897U CN 206264897 U CN206264897 U CN 206264897U CN 201621277060 U CN201621277060 U CN 201621277060U CN 206264897 U CN206264897 U CN 206264897U
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Abstract
The utility model discloses a kind of device for reducing lane-change early warning rate of false alarm, steering indicating light information is gathered by central processing element, the information of vehicle speed sensor and the information of lane line sensor, and by steering indicating light information, the information of vehicle speed sensor and the information of lane line sensor are contrasted with threshold value, final control alarm mechanism, the utility model is contrasted the driving situation of driver and the threshold value in system, can automatic decision driver whether lane change or abandon lane change, so as to automatic control alarm mechanism, avoid to causing to drive interference from car driver, and avoid rear car driver generation driving erroneous judgement.
Description
Technical field
The utility model belongs to field of traffic safety, and in particular to a kind of device of reduction lane-change early warning rate of false alarm.
Background technology
During vehicle lane-changing, driver not only to pay close attention at the moment front road conditions, will also the moment by after reflective sem observation vehicle
Fang Lukuang.Difficulty this adds increased vehicle operating is while driver is difficult to give front vehicle enough notices.And
Mainly by the moving situation of reflective sem observation front vehicle during driver's lane-change, this is just difficult to the motion state to front vehicle
There is one accurately to judge.With the development of automotive engineering, people have invented a variety of lane-change prior-warning devices and have carried out above-mentioned these feelings
The generation of condition.
But, because lane-change prior-warning device judges lane-change condition by the calculating to parameter TTC, and the threshold of parameter TTC
Value is different in the case of different relative velocities and relative distance, so there is the situation of lane-change prior-warning device wrong report.When driving
The person of sailing catches sight of during lane-change not to be possessed lane-change condition and abandons lane-change, and now lane-change prior-warning device has been switched on simultaneously
Can continue to alarm, this will be disturbed causing to drive from car driver, while rear car driver can be allowed to produce drives erroneous judgement.Institute
So that very big unsafe factor can be brought to driving environment the occurrence of lane-change prior-warning device is reported by mistake.If in lane-change early warning
After device starts alarm, the time and speed that lane line is crossed to the steering indicating light from car, vehicle carry out real-time monitoring, and by right
The comprehensive descision of these data judges whether driver has abandoned lane-change, if driver has abandoned lane-change, closes
Lane-change prior-warning device, can thus reduce the rate of false alarm of lane-change prior-warning device.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided a kind of device of reduction lane-change early warning rate of false alarm, energy
Enough reduce the rate of false alarm of lane-change prior-warning device.
In order to achieve the above object, the utility model includes vehicle speed sensor and is fixed on the lane line biography of front part of vehicle
Sensor, vehicle speed sensor and lane line sensor are all connected with central processing element, central processing element connection steering indicating light and alarm
Mechanism；
The vehicle speed sensor is used for collection vehicle present speed；
The lane line sensor is used for the lane line of collection vehicle both sides；
The central processing element is used to gather steering indicating light information, the information of vehicle speed sensor and lane line sensor
Information, and the information and threshold value of steering indicating light information, the information of vehicle speed sensor and lane line sensor are contrasted, finally
Control alarm mechanism.
The vehicle speed sensor is the velocity sensor on gearbox.
The lane line sensor is fixed on vehicle front bumper center.
The central processing element is connected by CAN interface with turning indicator control line.
The central processing element is connected by I/O interfaces with vehicle speed sensor and lane line sensor.
Compared with prior art, the utility model gathers steering indicating light information, vehicle speed sensor by central processing element
The information of information and lane line sensor, and by steering indicating light information, the information of vehicle speed sensor and lane line sensor
Information is contrasted with threshold value, finally controls alarm mechanism, the utility model to make the threshold in the driving situation of driver and system
Value is contrasted, can automatic decision driver whether lane change or abandon lane change so that automatic control alarm mechanism, it is to avoid right
Cause to drive from car driver and disturb, and avoid rear car driver and produce driving erroneous judgement.
Brief description of the drawings
Fig. 1 is system block diagram of the present utility model；
Wherein, 1, vehicle speed sensor；2nd, lane line sensor；3rd, central processing element；4th, steering indicating light；5th, alarm mechanism.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings.
Referring to Fig. 1, the utility model includes vehicle speed sensor 1 and is fixed on the lane line sensor 2 of front part of vehicle, car
Fast sensor 1 and lane line sensor 2 are all connected with central processing element 3, central processing element 3 connection steering indicating light 4 and alarming machine
Structure 5；Vehicle speed sensor 1 is used for collection vehicle present speed；Lane line sensor 2 is used for the lane line of collection vehicle both sides；
Central processing element 3 is used to gather the information of steering indicating light 4, the information of vehicle speed sensor 1 and lane line sensor 2
Information, and the information and threshold value of the information of steering indicating light 4, the information of vehicle speed sensor 1 and lane line sensor 2 are contrasted,
Final control alarm mechanism 5, central processing element 3 is connected by CAN interface with turning indicator control line, central processing element
3 are connected by I/O interfaces with vehicle speed sensor 1 and lane line sensor 2.
Preferably, vehicle speed sensor 1 is the velocity sensor on gearbox, and lane line sensor 2 is protected before being fixed on vehicle
Dangerous thick stick center.
When vehicle is travelled on road, calculated from car and corresponding track by the lane-change prior-warning device on vehicle
The TTC values of upper vehicle, work as TTC>During 4.0s, lane-change prior-warning device can point out the driver to carry out lane-change, and open corresponding warning
Device warns rear car；As TTC≤4.0s, lane-change prior-warning device prompting driver does not possess lane-change condition.But due to parameter
Threshold value of the TTC values in the case of different relative velocities and relative distance is different.So there is such case, i.e., when lane-change is pre-
Alarm device prompting driver can be with lane-change, and driver has found that actual conditions are not appropriate for lane-change during lane-change, and abandons
Lane-change is come back on former track, but the warning device of lane-change prior-warning device but works and to the driving from car and rear car all the time
Member interferes.At this moment, car speed v is obtained from vehicle-mounted vehicle speed sensor, and from installed in vehicle front bumper
It is preposition with vehicle-mounted apart from S, lane line with lane line that the lane line sensor in center obtains vehicle on vehicle axis system x-axis direction
The angle theta and vehicle of camera imaging axis and the nearest lateral separation D_R of lane line, and determine that vehicle crosses lane line
Time.Vehicle-mounted central processing element is connected with turning indicator control simultaneously.Central processing element is by turning to
Whether lamp is opened, vehicle cross lane line time and threshold limit value comparing and the comprehensive descision from these three conditions of car speed
To determine at this moment whether driver has abandoned lane-change.If judging, driver has abandoned lane-change, closes lane-change prior-warning device
Warning device；Otherwise it is then opposite.The rate of false alarm of lane-change prior-warning device can thus be reduced.
Claims (5)
1. a kind of device for reducing lane-change early warning rate of false alarm, it is characterised in that including vehicle speed sensor (1) and be fixed on vehicle
Anterior lane line sensor (2), vehicle speed sensor (1) and lane line sensor (2) are all connected with central processing element (3), in
Centre process chip (3) connects steering indicating light (4) and alarm mechanism (5)；
The vehicle speed sensor (1) is for collection vehicle present speed；
Lane line of the lane line sensor (2) for collection vehicle both sides；
The central processing element (3) passes for gathering steering indicating light (4) information, the information of vehicle speed sensor (1) and lane line
The information of sensor (2), and by the information of steering indicating light (4) information, the information of vehicle speed sensor (1) and lane line sensor (2)
Contrasted with threshold value, finally controlled alarm mechanism (5).
2. a kind of device for reducing lane-change early warning rate of false alarm according to claim 1, it is characterised in that speed sensing
Device (1) is the velocity sensor on gearbox.
3. a kind of device for reducing lane-change early warning rate of false alarm according to claim 1, it is characterised in that the lane line is passed
Sensor (2) is fixed on vehicle front bumper center.
4. it is according to claim 1 it is a kind of reduce lane-change early warning rate of false alarm device, it is characterised in that it is described center treatment
Chip (3) is connected by CAN interface with turning indicator control line.
5. it is according to claim 1 it is a kind of reduce lane-change early warning rate of false alarm device, it is characterised in that it is described center treatment
Chip (3) is connected by I/O interfaces with vehicle speed sensor (1) and lane line sensor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277060.9U CN206264897U (en) | 2016-11-25 | 2016-11-25 | A kind of device for reducing lane-change early warning rate of false alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621277060.9U CN206264897U (en) | 2016-11-25 | 2016-11-25 | A kind of device for reducing lane-change early warning rate of false alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206264897U true CN206264897U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621277060.9U Expired - Fee Related CN206264897U (en) | 2016-11-25 | 2016-11-25 | A kind of device for reducing lane-change early warning rate of false alarm |
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| Country | Link |
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| CN (1) | CN206264897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515577A (en) * | 2016-11-25 | 2017-03-22 | 长安大学 | Device for decreasing lane changing early warning false alarm rate and method of device |
-
2016
- 2016-11-25 CN CN201621277060.9U patent/CN206264897U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515577A (en) * | 2016-11-25 | 2017-03-22 | 长安大学 | Device for decreasing lane changing early warning false alarm rate and method of device |
| CN106515577B (en) * | 2016-11-25 | 2020-05-05 | 长安大学 | Device and method for reducing false alarm rate of channel change early warning |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20171125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |