Abstract:
An onboard vehicle safety detection and warning system that provides real time detection and analysis of surrounding vehicles for the driver on a central view screen. Multiple vehicle detection devices are mounted on the vehicle to provide an electronic detection tracking and recording capabilities advising the driver of potential accidents with visual and audio instructions for avoidance.

Description:
This application claims benefit of 60/570,183 filed May 13, 2004 

   BACKGROUND OF THE INVENTION 
   1. Technical Field 
   The present invention is directed to vehicle detection and warning systems for vehicles that will aid the driver in taking evasive action to prevent accidents. The present invention will be helpful to drivers by providing additional information about traffic conditions and other potential accident related situations in all environmental conditions which may diminish visual acuity of the driver. 
   2. Description of Prior Art 
   Prior art devices of this type have relied on a variety of different systems; see for example U.S. Pat. Nos. 4,626,850, 5,235,316, 5,892,855, 6,285,778 and 6,790,014. 
   In U.S. Pat. No. 4,626,850 a vehicle detection and collision avoidance apparatus is disclosed which utilizes an acoustical ranging device to determine the relative position of vehicles in relation to the control vehicle. 
   In U.S. Pat. No. 5,235,316 is directed to a vehicle collision avoidance system which utilizes a rotatable mirror and an ultrasonic transmitter receiving unit positioned to scan a pre-determined area about the vehicle to detect the present of an object and to calculate the distance from the vehicle and then to provide a warning threat to the occupant of the control vehicle. 
   U.S. Pat. No. 5,892,855 claims an apparatus for detecting an object located ahead of a vehicle using a plurality of cameras with different fields of view. This device provides multiple camera configurations which are interlinked to provide overlapping vehicle configurations for curving road applications for tracking vehicles ahead of the vehicle in which the device is located. 
   U.S. Pat. No. 6,285,778 is directed towards a vehicle surrounding monitor with obstacle avoidance lighting which utilizes a laser configuration to determine a projected pattern light spot matrix and record same with a camera to determine through data processing the relative position in relation to the transmitter. 
   U.S. Pat. No. 6,795,014 illustrates a method and apparatus for detecting a vehicle distance in which reflective waves of radar beams scanned at a scanning angle is adjusted based on lane markers extracted from road image obtained by a camera. This device is used to determine the relative position of the vehicle in which the equipment is positioned for guidance and tracking along an irregular road path and to detect objects such as the side of the road associated therewith. 
   SUMMARY OF THE INVENTION 
   A self contained safety alert system which will provide a driver a view of surrounding vehicle positions relative to their own vehicle. The integrated system combines a number of vehicle tracking sensors with electronic imagery cameras to create an integrated visual status and warning display for the driver using computer generated graphics and situation analysis with associated problem solving software. 

   
     DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a graphic display of vehicles; 
       FIG. 2  illustrates the display screen in warning situation; 
       FIG. 3  illustrates the display screen in a collision condition; 
       FIG. 4  is a graphic representation of the driver&#39;s vehicle and associated video cameras; 
       FIG. 5  illustrates the display screen in a collision condition; 
       FIG. 6  is a graphic representation of the driver&#39;s vehicle in component orientation therein; and 
       FIG. 7  is graphic block flow circuit diagram of the safety alert system. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENT 
   Referring to  FIGS. 1-4  of the drawings, a vehicle safety system of the invention can be seen for use with a driver&#39;s vehicle  2 . The safety system has a plurality of detection sensors  3  positioned on the vehicle  2  to provide an electronic detection perimeter thereabout as seen in  FIG. 1  of the drawings. 
   The detection sensors  3  are preferably radar units utilizing Doppler radar capability to locate and plot the target vehicle&#39;s  6  range and relative velocity. It will be noted that the detection sensor  3  radar units for this example have an effective detection range of up to 350 feet with an accuracy level of + or − three feet with a given beam band width of twelve degrees of a typical 5 mW monopulse radiation type. 
   Some of the detection sensors  3  are directionally adjustable for improved view. 
   Referring to  FIGS. 2 ,  3  and  5  of the drawings, a display screen  12  having a dimmer control  12 A with color graphic display  16  is illustrated showing a variety of driver alert situations in which information text  5  is also displayed identifying the problem and appropriate avoidance action to be taken. 
   Vehicle icons  6  are generated on the display screen  12  to show the relative position and their potential threat level by colorization at  14 . In this example, chosen for illustration, uncolored vehicle icons  11  indicate no threat while amber indicates warning changing to red at  14  indicates immediate collision with the driver&#39;s vehicle  2  which is shown as green at  15 , as seen in  FIGS. 2 and 3  of the drawings. 
   A voice synthesizer  13 / 21  is integrated into the system to provide an inaudible alert and accident avoidance directions to the driver in responding to the detected threat along with display text  5  as hereinbefore described. 
   Referring now to  FIG. 4  of the drawings, multiple electronic imagery cameras  17 ,  18  and  19  are positioned on the driver&#39;s vehicle  2  and are activated and controlled by an integrated control computer (CPU  41 ) as illustrated in block flow diagram in  FIG. 7  of the drawings as will be disclosed in greater detail hereinafter. 
   Video cameras  18  and  19  provide respective driver side and passenger side lane views as well as front quadrant views while the video camera  17  imparts a rear view to the driver D via a color display screen  20  mounted on the dash  26  of the user vehicle as best seen in  FIG. 6  of the drawings. 
   The camera images as generated are also stored continuously on a rewriteable electronic memory always recording and saving the effective last 256 megabytes of images for later review if required. 
   Referring now to  FIG. 7  of the drawings, computer controller  41  of the vehicle alert and avoidance system is illustrated having multiple radar units of the system indicated in the block flow diagram at  30 - 39  and video cameras  32 ,  34  and  36  via control lines  43  interconnected thereto with associated 12V DC power supply. 
   An analog to digital converter  38  interconnects the cameras  32 ,  34  and  36  with the control computer  41  for proper signal processing. 
   The driver display  46  and color LC display  48  are internally connected to this control computer  41  as well as the voice synthesizer and audio alarm speech indicator  45  with its own digital to analog converter  42  as will be well known and understood within the art. 
   An eighty GB automotive hardened hard drive  40  is provided as well as a USB memory stick port  44  for downloading images, if require, the control computer  41  is interconnected to the vehicle&#39;s engine control computer  47  as will be well understood by those skilled in the art. 
   It will be evident from the above description that the critical feature of this invention is that it can track all movement associated with vehicles in its range as well as the driver&#39;s vehicle which provides both real-time video imaging or electronically generated radar associated type detection and will record and store it on its onboard memory for review, as required. 
   Additionally, sensors can be utilized within the system to provide a record of the equipped vehicle&#39;s acceleration and deceleration as well as directional orientation, recording this information which will establish a pattern and record along with the associated vehicles in its perception range for review in the cause of an accident, for example, thus eliminating the inaccuracy of eye witness accounts and providing a unique electronic record of the accident for investigators to determine cause, effect and liability. 
   This information could also be used to establish individual&#39;s driving habits and thus be able to determine by analysis whether drivers are driving in a reckless manner which may occur through bad judgment or impaired senses such as the use of alcohol or drugs. 
   It will thus be seen that a new and novel vehicle safety and detection and warning system has been illustrated and described herein and that various changes and modification may be made thereto without departing from the spirit of the invention.