Communications: electrical – External condition vehicle-mounted indicator or alarm – Transmitter in one vehicle only
Patent
1991-04-16
1993-07-06
Ng, Jin F.
Communications: electrical
External condition vehicle-mounted indicator or alarm
Transmitter in one vehicle only
340901, 250202, G08G 100
Patent
active
052258270
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a device for increased road safety and more particularly a warning device for motor vehicles, the object of which is to prevent or reduce traffic accidents by the driver's attention being drawn to his unintentionally crossing the centre line of the roadway and on the way into the oncoming traffic lane, or his being on the way over the edge line driving off the road. The device also warns drivers attempting to overtake or to change their driving direction without flashing the blinkers, and functions as an orientational aid in a dense fog and in parking on marked parking slots.
It is a serious and a well known problem with all traffic accidents which occur for various reasons and which tend to increase with the increased traffic intensity. A kind of accident that occurs too often is when a driver of a motor vehicle dozes off or even falls asleep at the wheel and crosses the road centre line and drives into the oncoming traffic lane, or drives off the road to the right, in both cases too often resulting in disastrous consequences.
A further, typical traffic problem is drivers who neglect to flash the blinkers when overtaking or when turning left or right, which will often cause serious accidents or incidents.
TECHNICAL BACKGROUND
In the solutions known so far only daylight or lamplight has been used. This has a disadvantage in that scattered light and reflections from visible light may give false indications. Another disadvantage is that the known device requires a compensation for the light receiver with regard to the ambient varying light conditions.
SUMMARY OF THE INVENTION
In the present invention said drawbacks are avoided by using pulsed infrared (IR) light. Further advantages of IR light is a low power consumption, a large vibration endurance, a long life of the IR diodes compared with light bulbs. The system admits the possibility of a higher mounting height from the roadway, without jeopardizing the function.
Yet another advantage is that upon activation of the direction indicator (blinkers) the function of the device according to the invention may be blocked in order to avoid undue warning signals when the white marking lines on the roadway are intentionally crossed, such as in change of lanes, overtakings, or right and left turns, respectively.
The object of the invention is to prevent or mitigate the effect of personal injuries or vehicle damage, which often occur when a driver dozes off or falls asleep at the wheel and as a consequence unintentionally leaves the correct lane, and when a driver neglects to flash the blinkers when overtaking and in other changes of lanes or driving directions, which, unfortunately, often also causes serious accidents and incidents. Said object is achieved by the characteristics defined in the attached claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described below with reference to the attached figures, in which
FIG. 1 discloses a motor vehicle driving on a roadway, with an example of the road centre line and the edge lines,
FIG. 2 discloses a motor car, viewed from the front, having a detector A, an electronic unit B and buzzers C according to the invention mounted,
FIG. 3 discloses a front of a motor car, viewed from the right-hand side having a detector A mounted,
FIG. 4 discloses a complete detector unit A according to the invention, and
FIG. 5 discloses a block diagram of the warning device according to the invention.
DESCRIPTION OF A PREFERRED EMBODIMENT
The present invention relates to a warning device for motor vehicles. The device will sense when a road marking line painted on the roadway is unintentionally crossed and will then issue a warning signal to the driver. In FIG. 1 the warning device according to the invention is shown mounted on a motor vehicle D driving in the direction J on a typical roadway having road marking lines of various kinds. In the figure there are shown, by way of example, short edge lines E, a side solid line F, a long centre line G and a centre solid line H.
REFERENCES:
patent: 3201750 (1965-08-01), Morin
patent: 3353619 (1967-11-01), Lambert
patent: 3559756 (1971-02-01), Torres
patent: 4143264 (1979-03-01), Gilbert et al.
patent: 4348652 (1982-09-01), Barnes et al.
patent: 4528563 (1985-07-01), Takeuchi
patent: 4858132 (1989-08-01), Holmquist
patent: 4970509 (1990-11-01), Kissinger, Sr.
Hofsass Jeffery A.
Ng Jin F.
LandOfFree
Warning device in a motor vehicle for detection of unintentional does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Warning device in a motor vehicle for detection of unintentional, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Warning device in a motor vehicle for detection of unintentional will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1693224