JP2018096957A - Vehicle-mounted corner reflector for enlarging rcs of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems that the number of vehicles each mounting a radar for collision prevention therein is increased in the recent years, the radar for collision prevention is convenient for finding a target or measuring a vehicular gap but although it is difficult for a vehicle or a motorcycle of a small radar reflection area (RCS) to distinguish between noise and a signal because of reflection on the ground or a noise radio wave from the outside and there is the risk that an accident may occur as a result, there is no means for enlarging the RCS of the vehicle or the motorcycle conventionally.SOLUTION: A part of a number plate or a bumper of a vehicle is press-molded into a shape of an inverse triangular cone and defined as a corner reflector. Therefore, an RCS of a small-sized vehicle or a motorcycle is enlarged and easy to be found from a radar for collision prevention. A corner reflector that is manufactured separately is mounted at a position easy to mount the corner reflector in a vehicle or a motorcycle by using a dedicated tool magnets or screws. Therefore, the vehicle can be easily identified from s radar for collision prevention of a mating vehicle. In accordance with such methods, a vehicle with the device mounted therein can be easily captured by the radar for collision prevention and can easily distinguish from surrounding noise, such that safety is further improved.SELECTED DRAWING: Figure 1

Description

The present invention relates to a technique for increasing the radar reflection area of an automobile or motorcycle so that it can be easily found in a collision prevention radar for a following vehicle or an oncoming vehicle.

In recent years, technology related to safe driving of automobiles has advanced, and the number of vehicles equipped with radar for collision prevention has increased. Anti-collision radars are useful for finding targets and measuring distances between vehicles, but cars and motorcycles with a small radar reflection area (RCS) can be distinguished from noise and signals due to ground reflections and external noise radio waves. Although it is difficult and can lead to accidents, there has been no way to increase the RCS of cars and motorcycles.

Selection technical literature

Patent Literature

The present invention has been made to increase the RCS of cars and motorcycles having a small radar reflection area (RCS) to improve the target detection probability of the collision prevention radar.

From the collision-preventing radar, a large RCS license plate is made by press-molding the empty part of the car's license plate, which is not marked with letters, into the shape of an inverted triangular pyramid (corner reflector), and attached to a car or motorcycle. It was easy to find.
In addition, if it is difficult to process the license plate due to legal issues, a method of pressing a part of the bumper into an inverted triangular pyramid shape or using a separately made corner reflector with a dedicated tool, magnet or screw By attaching it to the periphery of the license plate, car bumper, etc., it is easy to identify your car from the opponent's collision prevention radar.

A vehicle with the corner reflectors of the present invention attached to the front and rear of the vehicle has a larger RCS than a vehicle without a corner reflector, so that it can be easily captured by a collision prevention radar, The effect that discrimination becomes easy is acquired.

FIG. 1 shows an embodiment in which a license plate with a corner reflector is produced by press-molding a portion where no license plate characters are written into a triangular pyramid shape. FIG. 2 is a perspective view of the back surface of a press-molded license plate. Since it has a triangular pyramid, it needs to be attached several centimeters away from the vehicle body in consideration of the protruding portion. The embodiment of FIG. 3 is easy to attach because there is a gap behind where the license plate is attached. On the other hand, in the case where the corner reflector according to claim 2 is press-molded on the bumper, there is a gap between the bumper and the vehicle body, so that the protrusion of the corner reflector does not interfere with the mounting. Although the method of press-molding the corner reflector on a part of the bumper is shown in the second aspect, the same effect can be obtained even if the corner reflector is molded on the vehicle body other than the bumper by the same method. In the case of claim 3, it is not press molded, but a corner reflector made separately is attached to a license plate, bumper, etc. with screws, magnets, etc. So don't get in the way.

Front view of part of license plate press-molded in the shape of an inverted triangular pyramid Perspective view of the back side of a license plate press-molded into an inverted triangular pyramid shape Front view of car bumper and trunk lid pressed into an inverted triangular pyramid shape

1 Front view of part of the license plate press-molded in the shape of an inverted triangular pyramid 2 Corner reflector made by press molding 3 Perspective view of the back of the license plate 4 Corner reflector seen from the back 5 Press-molded bumper of the car Corner reflector 6 Corner reflector made by press molding a part of the trunk lid

Claims (3)

Pressing the empty part of the car's license plate where no letters are written into a shape such as an inverted triangular pyramid (corner reflector), the radar reflection area (RCS) is set so that it is easy to find when illuminated by a collision prevention radar. License plate with corner reflector, characterized by an increase in size Car body parts such as car bumpers and trunk lids that are easy to see from behind are press-molded into a shape such as an inverted triangular pyramid (corner reflector), and if that part is made of a material other than metal, that part is plated with metal. A vehicle body with a corner reflector, characterized in that the radar reflection area (RCS) is increased so that it can be easily found when irradiated by a collision prevention radar. A corner reflector for mounting on a vehicle, characterized in that the corner reflector is attached to a front plate, a rear license plate portion, a bumper portion, or a place where it can be easily mounted by using a screw or a magnet.

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