Communications: electrical – External condition vehicle-mounted indicator or alarm – Transmitter in one vehicle only
Patent
1995-03-02
1996-12-10
Hofsass, Jeffery
Communications: electrical
External condition vehicle-mounted indicator or alarm
Transmitter in one vehicle only
340435, 340436, 342 70, 367909, 180170, 364461, 364426041, G08G 100
Patent
active
055834957
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to the field of technical vision for objects detection, and, more particularly to systems for providing an alarm when a vehicle is present in the dead zone of driver's view (FIG. 1) at the left or right side of the vehicle, especially when the driver tries to move to one side or the other, as when changing lanes.
SUMMARY OF THE INVENTION
According to the present invention, there is provided an apparatus for the automatic detection of dangerous objects in the left and right sides of vehicle and in its back space comprising: ultrasound transmitters (4) activated by generators (6) with defined angle of radiation emitting ultrasound waves continuously or pulsed or modulated; ultrasound receivers (14) connected to an analog or digital analyzer for determination of intensity, speed of change, Doppler's frequency change and angle of fall of the received signal that depends on road situation; amplifiers (16), signal analyzer (18) includes time and frequency discriminators for speed and distance determination, received returned signal from amplifiers and standard signal from generator, control and signal from amplifiers and standard signal from generator, control and calculation unit with condition inputs like vehicle speed (10) and turn signal (12), commutation unit, alarm or display unit for communication with driver, communication to other vehicle systems that detects dangerous objects presence into the pre-defined area limited by lines of driver's direct view, borders of left and right adjacent lines of traffic and predetermined distance back and provides alarm or signalization to vehicle driver.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is herein described, by way of example only, with reference to the accompanying drawings, wherein:
FIG. 1 contains basic drawing of driver's field of view where .alpha.1 is a front view, .alpha.2--view through left side mirror, .alpha.3--view through right side mirror, .alpha.4--panorama mirror view, .beta.1 and .beta.2 angles defining "dead area" of drivers view. R and L are areas where detection of another vehicle is needed. Those areas includes two lines (in the left and right sides) limited by .alpha.1 angle lines forward and same distance back from vehicle (about 10-15 meters). Dashed line shows dangerous object may occur in those areas.
FIG. 2 shows functional division of dangerous places on the left and right sides. Distance A is comparable with vehicle length. Distance B is additional length that dangerous object may arrive from.
FIG. 3 presents a basic embodiment of the apparatus, according to the present invention which includes: radiation sources (4), radiation receivers (14), amplifiers (16), signal analyzer (18), control and calculation unit (8) with conditions inputs mm signal (12) and vehicle state of moving (10), terminals (20) like computer interface, alarm and/or signalization.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 presents the borders of vehicle driver's view, defined by direct angle .alpha.1 in addition with back view throw the left side mirror .alpha.2, back view through right side mirror .alpha.3 and back view through panorama mirror .alpha.4. There remains blind spot dead area open space in angle .beta.1 in left .beta.2 in right side of drawing vehicle. Non detected vehicle may appear in dead area. Danger state occurs when driver tries to move to the left or right path of the road for overcoming preceding low speed vehicle or any object on the left or right. An accident may occur. For prevention of accident driver must have alarm when another vehicle is moving in the dead area or comes near for overcame his own vehicle.
An object of the present invention is to provide appropriate solutions for detection of a vehicle appeared in the dead field of drivers view or in every place in the right or left side and in questionable areas back of them. Proposed problem solution based on ultrasound location of the dangerous area R and L defined on FIGS. 1 and 2. The ultrasoun
REFERENCES:
patent: 4028662 (1977-06-01), Young
patent: 4694296 (1987-09-01), Sasaki et al.
patent: 5235316 (1993-08-01), Qualizza
Friedman Mark M.
Hofsass Jeffery
Tong Nina
LandOfFree
Vehicle alarm system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle alarm system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle alarm system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-426549