f~ 7 SPECIFICATION
This .invention rela-tes to a radar, also known as a sensor, attached and/or embodied to a motor vehicle ;.
particularly traveling along the high-way.
A principal objec-t of this invention is to provide a device its purpose is to provide the driver estimates of certain characteristics of its surroundings most commonly the presence, position and motion of vehicles in its vicinity 9 substantially a straight-forward visibility feature, in like manner, said device, essen-tially provide the driver alertness, concentration and ease of mind while driving, ~
Another objec-t of -this invention is to provide a ~ -device, as described, to motor vehicles which is simple in design, which is compact, which is easy to install, which is easy to use, which is efficient in operation and which is inexpensive to manufacture.
Further object of this invention is -to provide a device t as described, that wi].l provide and maintain safety to motor vehicles travelling along the high-ways, preven-ting avoidable and costly accidents and which, it is hoped, will become the standard of commerce for the purpose, The above and other objects and advantages of this invention will become more readily evident upon a study of the following specification, including -the drawing in which like reference numerals refer -to ;.
like parts. -~;
Fig, 1 is a top view of a 3 lane half of a high~
way.
Fig, 2 is a top view of a 2 lane two way road.
Fig, 3 - - - ditto ~
~ ~ ~ V '~ 7 Referring now to the drawing in detail, and more particularly Fig, 1 at thi~ -time, the reference numeral~
1 and 2 represents the blind spot port~on of the high-way,relative to the visibility capability of the driver 3, and which is always constant when travelling forward, The space 4, behind -the vehicle ~, is the vi-sible area to the driver as reflected from the side mirrors 6 and 7, and the rear view mirror 80 Vehicles 9 and 10, tra~elling on the same direction parallel to vehicle 5, being in the blind spot area are not visible to the driver 3. Antenna 11, radiates electromagnetic energy 12 and 13 to the left and right blind spo-t areas respectively, and 14 directly in front.
Fig. 2 shows the ~ame vehicle 5, traveling on a two way road with antenna 11, radiating signals 14 and receiving echoes from an obs^tacle, vehicle 15, traveling -on the same lane going directly towards vehicle 5, Driver 3 upon detection of an oncoming vehicle from a 100 meters distance can signal d~ver 17, by means of his horn or blinker and he can take necessary precaution to a~oid an accident.
Fig~ 3, shows the same situation as in Fig, 2 but vehicle 16, is going on the same direction in a slower speed. Driver 3, can take the necessary precaution especially on foggy or bad weather.
Radar, a sensor, is the moving factor of this invention and a brief discussion of how it functions is in order, Radar is an acronym for radio detection and ranging, the original and still -the principal application of both the technique and the equipment used. It is convenient to consider radar as having four principal partst -the transmitter, antenna, rec~i~er a~d display, The transmit-ter provides the electromagnetic signal in sufficient strenght for radar sensitivity desired and sends i-t to the antenna, which causes the signal to be radiated into the front and the blind spots direction. The signals,when intercepted by reflecting bodies in their direction of focus, are radiated back to the antenna which collects and routes them to the receiver where -they are processed and detected.
The presence of an echo of the transmitted signal in the received signal reveals the presence of an obs-tacle. The echo is indicated by a sudden rise in the output of the detector. The receiver delivers the echo to the corresponding display on the dash board according to the antenna recipient of the signal, The receiver also determine -through its processor and detector the direction of travel by the vehicle directly in front by the difference in echo pulses received by -the antenna. Adjusted to the rate of echo pulses received at a distance of 75 meters and less from an oncoming vehicle activates a beeper whose rate of frequency ;
increases as the oncoming vehicle comes nearer and nearer. An extreme danger warning to the driverO `~
While the invention has been described in detail with respect to a now preferred example and embodiment ;~
of the invention it is not to be construed as limited to the particular forms described herein, since these are to be regarded as illustrative rather than res- ~-trictive and that various changes and modifications maybe made without depar-ting from the spirit and scope of the invention and it is in-tended, therefore, to cover all such changes and modifications in the ;~ -appended claims, ;
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